From 503a44c63f3f6e4abfc76fae2fcb1262fa322eab Mon Sep 17 00:00:00 2001
From: casey <casey@users.noreply.github.com>
Date: Fri, 5 Jan 2024 23:49:21 +0000
Subject: [PATCH] deploy: f812bf6afb09e03e50e88700062347843afa7e58

---
 book/404.html                                 |  29 ++--
 book/bittorrent.html                          |  33 +++--
 book/bittorrent/bep-support.html              |  33 +++--
 .../distributing-large-data-sets.html         |  33 +++--
 book/bittorrent/metainfo-utilities.html       |  33 +++--
 book/bittorrent/piece-length-selection.html   |  33 +++--
 book/bittorrent/udp-tracker-protocol.html     |  33 +++--
 book/book.js                                  |  47 ++++--
 book/commands.html                            |  33 +++--
 book/commands/imdl-completions.html           |  33 +++--
 book/commands/imdl-torrent-announce.html      |  33 +++--
 book/commands/imdl-torrent-create.html        |  33 +++--
 book/commands/imdl-torrent-from-link.html     |  33 +++--
 book/commands/imdl-torrent-link.html          |  33 +++--
 book/commands/imdl-torrent-piece-length.html  |  33 +++--
 book/commands/imdl-torrent-show.html          |  33 +++--
 book/commands/imdl-torrent-stats.html         |  33 +++--
 book/commands/imdl-torrent-verify.html        |  33 +++--
 book/commands/imdl-torrent.html               |  33 +++--
 book/commands/imdl.html                       |  33 +++--
 book/css/chrome.css                           | 137 +++++++++++++-----
 book/css/general.css                          |  50 +++++--
 book/css/print.css                            |   8 +-
 book/css/variables.css                        |  14 ++
 book/faq.html                                 |  33 +++--
 book/highlight.js                             |  49 ++++++-
 book/index.html                               |  33 +++--
 book/introduction.html                        |  33 +++--
 book/print.html                               |  31 ++--
 book/references.html                          |  33 +++--
 book/references/bittorrent.html               |  33 +++--
 book/references/cryptography.html             |  29 ++--
 book/references/metadata.html                 |  33 +++--
 head.txt                                      |   2 +-
 34 files changed, 774 insertions(+), 414 deletions(-)
diff --git a/book/404.html b/book/404.html
index b86d4a2e..e09b1e8c 100644
--- a/book/404.html
+++ b/book/404.html
@@ -1,5 +1,5 @@
 <!DOCTYPE HTML>
-<html lang="en" class="sidebar-visible no-js ayu">
+<html lang="en" class="ayu" dir="ltr">
     <head>
         <!-- Book generated using mdBook -->
         <meta charset="UTF-8">
@@ -11,7 +11,7 @@
         
         <meta name="description" content="">
         <meta name="viewport" content="width=device-width, initial-scale=1">
-        <meta name="theme-color" content="#ffffff" />
+        <meta name="theme-color" content="#ffffff">
 
         <link rel="icon" href="favicon.svg">
         <link rel="shortcut icon" href="favicon.png">
@@ -33,7 +33,7 @@
         <link rel="stylesheet" href="custom.css">
 
     </head>
-    <body>
+    <body class="sidebar-visible no-js">
     <div id="body-container">
         <!-- Provide site root to javascript -->
         <script>
@@ -63,31 +63,38 @@
             try { theme = localStorage.getItem('mdbook-theme'); } catch(e) { }
             if (theme === null || theme === undefined) { theme = default_theme; }
             var html = document.querySelector('html');
-            html.classList.remove('no-js')
             html.classList.remove('ayu')
             html.classList.add(theme);
-            html.classList.add('js');
+            var body = document.querySelector('body');
+            body.classList.remove('no-js')
+            body.classList.add('js');
         </script>
 
+        <input type="checkbox" id="sidebar-toggle-anchor" class="hidden">
+
         <!-- Hide / unhide sidebar before it is displayed -->
         <script>
-            var html = document.querySelector('html');
+            var body = document.querySelector('body');
             var sidebar = null;
+            var sidebar_toggle = document.getElementById("sidebar-toggle-anchor");
             if (document.body.clientWidth >= 1080) {
                 try { sidebar = localStorage.getItem('mdbook-sidebar'); } catch(e) { }
                 sidebar = sidebar || 'visible';
             } else {
                 sidebar = 'hidden';
             }
-            html.classList.remove('sidebar-visible');
-            html.classList.add("sidebar-" + sidebar);
+            sidebar_toggle.checked = sidebar === 'visible';
+            body.classList.remove('sidebar-visible');
+            body.classList.add("sidebar-" + sidebar);
         </script>
 
         <nav id="sidebar" class="sidebar" aria-label="Table of contents">
             <div class="sidebar-scrollbox">
                 <ol class="chapter"><li class="chapter-item expanded affix "><a href="introduction.html">Intermodal</a></li><li class="chapter-item expanded "><a href="faq.html"><strong aria-hidden="true">1.</strong> FAQ</a></li><li class="chapter-item expanded "><a href="commands.html"><strong aria-hidden="true">2.</strong> Commands</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="commands/imdl.html"><strong aria-hidden="true">2.1.</strong> imdl</a></li><li class="chapter-item expanded "><a href="commands/imdl-completions.html"><strong aria-hidden="true">2.2.</strong> imdl completions</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent.html"><strong aria-hidden="true">2.3.</strong> imdl torrent</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-announce.html"><strong aria-hidden="true">2.4.</strong> imdl torrent announce</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-create.html"><strong aria-hidden="true">2.5.</strong> imdl torrent create</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-from-link.html"><strong aria-hidden="true">2.6.</strong> imdl torrent from-link</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-link.html"><strong aria-hidden="true">2.7.</strong> imdl torrent link</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-piece-length.html"><strong aria-hidden="true">2.8.</strong> imdl torrent piece-length</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-show.html"><strong aria-hidden="true">2.9.</strong> imdl torrent show</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-stats.html"><strong aria-hidden="true">2.10.</strong> imdl torrent stats</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-verify.html"><strong aria-hidden="true">2.11.</strong> imdl torrent verify</a></li></ol></li><li class="chapter-item expanded "><a href="bittorrent.html"><strong aria-hidden="true">3.</strong> Bittorrent</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="bittorrent/piece-length-selection.html"><strong aria-hidden="true">3.1.</strong> Piece Length Selection</a></li><li class="chapter-item expanded "><a href="bittorrent/bep-support.html"><strong aria-hidden="true">3.2.</strong> BEP Support</a></li><li class="chapter-item expanded "><a href="bittorrent/metainfo-utilities.html"><strong aria-hidden="true">3.3.</strong> Metainfo Utilities</a></li><li class="chapter-item expanded "><a href="bittorrent/distributing-large-data-sets.html"><strong aria-hidden="true">3.4.</strong> Distributing Large Data Sets</a></li><li class="chapter-item expanded "><a href="bittorrent/udp-tracker-protocol.html"><strong aria-hidden="true">3.5.</strong> UDP Tracker Protocol</a></li></ol></li><li class="chapter-item expanded "><a href="references.html"><strong aria-hidden="true">4.</strong> References</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="references/bittorrent.html"><strong aria-hidden="true">4.1.</strong> BitTorrent</a></li><li class="chapter-item expanded "><a href="references/metadata.html"><strong aria-hidden="true">4.2.</strong> Metadata</a></li><li class="chapter-item expanded "><a href="references/cryptography.html"><strong aria-hidden="true">4.3.</strong> Cryptography</a></li></ol></li></ol>
             </div>
-            <div id="sidebar-resize-handle" class="sidebar-resize-handle"></div>
+            <div id="sidebar-resize-handle" class="sidebar-resize-handle">
+                <div class="sidebar-resize-indicator"></div>
+            </div>
         </nav>
 
         <!-- Track and set sidebar scroll position -->
@@ -118,9 +125,9 @@
                                 <div id="menu-bar-hover-placeholder"></div>
                 <div id="menu-bar" class="menu-bar sticky">
                     <div class="left-buttons">
-                        <button id="sidebar-toggle" class="icon-button" type="button" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
+                        <label id="sidebar-toggle" class="icon-button" for="sidebar-toggle-anchor" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
                             <i class="fa fa-bars"></i>
-                        </button>
+                        </label>
                         <button id="theme-toggle" class="icon-button" type="button" title="Change theme" aria-label="Change theme" aria-haspopup="true" aria-expanded="false" aria-controls="theme-list">
                             <i class="fa fa-paint-brush"></i>
                         </button>
diff --git a/book/bittorrent.html b/book/bittorrent.html
index e5f740fa..68691bbd 100644
--- a/book/bittorrent.html
+++ b/book/bittorrent.html
@@ -1,5 +1,5 @@
 <!DOCTYPE HTML>
-<html lang="en" class="sidebar-visible no-js ayu">
+<html lang="en" class="ayu" dir="ltr">
     <head>
         <!-- Book generated using mdBook -->
         <meta charset="UTF-8">
@@ -10,7 +10,7 @@
         
         <meta name="description" content="">
         <meta name="viewport" content="width=device-width, initial-scale=1">
-        <meta name="theme-color" content="#ffffff" />
+        <meta name="theme-color" content="#ffffff">
 
         <link rel="icon" href="favicon.svg">
         <link rel="shortcut icon" href="favicon.png">
@@ -32,7 +32,7 @@
         <link rel="stylesheet" href="custom.css">
 
     </head>
-    <body>
+    <body class="sidebar-visible no-js">
     <div id="body-container">
         <!-- Provide site root to javascript -->
         <script>
@@ -62,31 +62,38 @@
             try { theme = localStorage.getItem('mdbook-theme'); } catch(e) { }
             if (theme === null || theme === undefined) { theme = default_theme; }
             var html = document.querySelector('html');
-            html.classList.remove('no-js')
             html.classList.remove('ayu')
             html.classList.add(theme);
-            html.classList.add('js');
+            var body = document.querySelector('body');
+            body.classList.remove('no-js')
+            body.classList.add('js');
         </script>
 
+        <input type="checkbox" id="sidebar-toggle-anchor" class="hidden">
+
         <!-- Hide / unhide sidebar before it is displayed -->
         <script>
-            var html = document.querySelector('html');
+            var body = document.querySelector('body');
             var sidebar = null;
+            var sidebar_toggle = document.getElementById("sidebar-toggle-anchor");
             if (document.body.clientWidth >= 1080) {
                 try { sidebar = localStorage.getItem('mdbook-sidebar'); } catch(e) { }
                 sidebar = sidebar || 'visible';
             } else {
                 sidebar = 'hidden';
             }
-            html.classList.remove('sidebar-visible');
-            html.classList.add("sidebar-" + sidebar);
+            sidebar_toggle.checked = sidebar === 'visible';
+            body.classList.remove('sidebar-visible');
+            body.classList.add("sidebar-" + sidebar);
         </script>
 
         <nav id="sidebar" class="sidebar" aria-label="Table of contents">
             <div class="sidebar-scrollbox">
                 <ol class="chapter"><li class="chapter-item expanded affix "><a href="introduction.html">Intermodal</a></li><li class="chapter-item expanded "><a href="faq.html"><strong aria-hidden="true">1.</strong> FAQ</a></li><li class="chapter-item expanded "><a href="commands.html"><strong aria-hidden="true">2.</strong> Commands</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="commands/imdl.html"><strong aria-hidden="true">2.1.</strong> imdl</a></li><li class="chapter-item expanded "><a href="commands/imdl-completions.html"><strong aria-hidden="true">2.2.</strong> imdl completions</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent.html"><strong aria-hidden="true">2.3.</strong> imdl torrent</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-announce.html"><strong aria-hidden="true">2.4.</strong> imdl torrent announce</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-create.html"><strong aria-hidden="true">2.5.</strong> imdl torrent create</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-from-link.html"><strong aria-hidden="true">2.6.</strong> imdl torrent from-link</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-link.html"><strong aria-hidden="true">2.7.</strong> imdl torrent link</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-piece-length.html"><strong aria-hidden="true">2.8.</strong> imdl torrent piece-length</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-show.html"><strong aria-hidden="true">2.9.</strong> imdl torrent show</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-stats.html"><strong aria-hidden="true">2.10.</strong> imdl torrent stats</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-verify.html"><strong aria-hidden="true">2.11.</strong> imdl torrent verify</a></li></ol></li><li class="chapter-item expanded "><a href="bittorrent.html" class="active"><strong aria-hidden="true">3.</strong> Bittorrent</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="bittorrent/piece-length-selection.html"><strong aria-hidden="true">3.1.</strong> Piece Length Selection</a></li><li class="chapter-item expanded "><a href="bittorrent/bep-support.html"><strong aria-hidden="true">3.2.</strong> BEP Support</a></li><li class="chapter-item expanded "><a href="bittorrent/metainfo-utilities.html"><strong aria-hidden="true">3.3.</strong> Metainfo Utilities</a></li><li class="chapter-item expanded "><a href="bittorrent/distributing-large-data-sets.html"><strong aria-hidden="true">3.4.</strong> Distributing Large Data Sets</a></li><li class="chapter-item expanded "><a href="bittorrent/udp-tracker-protocol.html"><strong aria-hidden="true">3.5.</strong> UDP Tracker Protocol</a></li></ol></li><li class="chapter-item expanded "><a href="references.html"><strong aria-hidden="true">4.</strong> References</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="references/bittorrent.html"><strong aria-hidden="true">4.1.</strong> BitTorrent</a></li><li class="chapter-item expanded "><a href="references/metadata.html"><strong aria-hidden="true">4.2.</strong> Metadata</a></li><li class="chapter-item expanded "><a href="references/cryptography.html"><strong aria-hidden="true">4.3.</strong> Cryptography</a></li></ol></li></ol>
             </div>
-            <div id="sidebar-resize-handle" class="sidebar-resize-handle"></div>
+            <div id="sidebar-resize-handle" class="sidebar-resize-handle">
+                <div class="sidebar-resize-indicator"></div>
+            </div>
         </nav>
 
         <!-- Track and set sidebar scroll position -->
@@ -117,9 +124,9 @@
                                 <div id="menu-bar-hover-placeholder"></div>
                 <div id="menu-bar" class="menu-bar sticky">
                     <div class="left-buttons">
-                        <button id="sidebar-toggle" class="icon-button" type="button" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
+                        <label id="sidebar-toggle" class="icon-button" for="sidebar-toggle-anchor" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
                             <i class="fa fa-bars"></i>
-                        </button>
+                        </label>
                         <button id="theme-toggle" class="icon-button" type="button" title="Change theme" aria-label="Change theme" aria-haspopup="true" aria-expanded="false" aria-controls="theme-list">
                             <i class="fa fa-paint-brush"></i>
                         </button>
@@ -181,7 +188,7 @@ <h1 id="bittorrent"><a class="header" href="#bittorrent">BitTorrent</a></h1>
                                 <i class="fa fa-angle-left"></i>
                             </a>
 
-                            <a rel="next" href="bittorrent/piece-length-selection.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
+                            <a rel="next prefetch" href="bittorrent/piece-length-selection.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
                                 <i class="fa fa-angle-right"></i>
                             </a>
 
@@ -195,7 +202,7 @@ <h1 id="bittorrent"><a class="header" href="#bittorrent">BitTorrent</a></h1>
                         <i class="fa fa-angle-left"></i>
                     </a>
 
-                    <a rel="next" href="bittorrent/piece-length-selection.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
+                    <a rel="next prefetch" href="bittorrent/piece-length-selection.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
                         <i class="fa fa-angle-right"></i>
                     </a>
             </nav>
diff --git a/book/bittorrent/bep-support.html b/book/bittorrent/bep-support.html
index 2dc340e9..5d4b77e4 100644
--- a/book/bittorrent/bep-support.html
+++ b/book/bittorrent/bep-support.html
@@ -1,5 +1,5 @@
 <!DOCTYPE HTML>
-<html lang="en" class="sidebar-visible no-js ayu">
+<html lang="en" class="ayu" dir="ltr">
     <head>
         <!-- Book generated using mdBook -->
         <meta charset="UTF-8">
@@ -10,7 +10,7 @@
         
         <meta name="description" content="">
         <meta name="viewport" content="width=device-width, initial-scale=1">
-        <meta name="theme-color" content="#ffffff" />
+        <meta name="theme-color" content="#ffffff">
 
         <link rel="icon" href="../favicon.svg">
         <link rel="shortcut icon" href="../favicon.png">
@@ -32,7 +32,7 @@
         <link rel="stylesheet" href="../custom.css">
 
     </head>
-    <body>
+    <body class="sidebar-visible no-js">
     <div id="body-container">
         <!-- Provide site root to javascript -->
         <script>
@@ -62,31 +62,38 @@
             try { theme = localStorage.getItem('mdbook-theme'); } catch(e) { }
             if (theme === null || theme === undefined) { theme = default_theme; }
             var html = document.querySelector('html');
-            html.classList.remove('no-js')
             html.classList.remove('ayu')
             html.classList.add(theme);
-            html.classList.add('js');
+            var body = document.querySelector('body');
+            body.classList.remove('no-js')
+            body.classList.add('js');
         </script>
 
+        <input type="checkbox" id="sidebar-toggle-anchor" class="hidden">
+
         <!-- Hide / unhide sidebar before it is displayed -->
         <script>
-            var html = document.querySelector('html');
+            var body = document.querySelector('body');
             var sidebar = null;
+            var sidebar_toggle = document.getElementById("sidebar-toggle-anchor");
             if (document.body.clientWidth >= 1080) {
                 try { sidebar = localStorage.getItem('mdbook-sidebar'); } catch(e) { }
                 sidebar = sidebar || 'visible';
             } else {
                 sidebar = 'hidden';
             }
-            html.classList.remove('sidebar-visible');
-            html.classList.add("sidebar-" + sidebar);
+            sidebar_toggle.checked = sidebar === 'visible';
+            body.classList.remove('sidebar-visible');
+            body.classList.add("sidebar-" + sidebar);
         </script>
 
         <nav id="sidebar" class="sidebar" aria-label="Table of contents">
             <div class="sidebar-scrollbox">
                 <ol class="chapter"><li class="chapter-item expanded affix "><a href="../introduction.html">Intermodal</a></li><li class="chapter-item expanded "><a href="../faq.html"><strong aria-hidden="true">1.</strong> FAQ</a></li><li class="chapter-item expanded "><a href="../commands.html"><strong aria-hidden="true">2.</strong> Commands</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../commands/imdl.html"><strong aria-hidden="true">2.1.</strong> imdl</a></li><li class="chapter-item expanded "><a href="../commands/imdl-completions.html"><strong aria-hidden="true">2.2.</strong> imdl completions</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent.html"><strong aria-hidden="true">2.3.</strong> imdl torrent</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-announce.html"><strong aria-hidden="true">2.4.</strong> imdl torrent announce</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-create.html"><strong aria-hidden="true">2.5.</strong> imdl torrent create</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-from-link.html"><strong aria-hidden="true">2.6.</strong> imdl torrent from-link</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-link.html"><strong aria-hidden="true">2.7.</strong> imdl torrent link</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-piece-length.html"><strong aria-hidden="true">2.8.</strong> imdl torrent piece-length</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-show.html"><strong aria-hidden="true">2.9.</strong> imdl torrent show</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-stats.html"><strong aria-hidden="true">2.10.</strong> imdl torrent stats</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-verify.html"><strong aria-hidden="true">2.11.</strong> imdl torrent verify</a></li></ol></li><li class="chapter-item expanded "><a href="../bittorrent.html"><strong aria-hidden="true">3.</strong> Bittorrent</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../bittorrent/piece-length-selection.html"><strong aria-hidden="true">3.1.</strong> Piece Length Selection</a></li><li class="chapter-item expanded "><a href="../bittorrent/bep-support.html" class="active"><strong aria-hidden="true">3.2.</strong> BEP Support</a></li><li class="chapter-item expanded "><a href="../bittorrent/metainfo-utilities.html"><strong aria-hidden="true">3.3.</strong> Metainfo Utilities</a></li><li class="chapter-item expanded "><a href="../bittorrent/distributing-large-data-sets.html"><strong aria-hidden="true">3.4.</strong> Distributing Large Data Sets</a></li><li class="chapter-item expanded "><a href="../bittorrent/udp-tracker-protocol.html"><strong aria-hidden="true">3.5.</strong> UDP Tracker Protocol</a></li></ol></li><li class="chapter-item expanded "><a href="../references.html"><strong aria-hidden="true">4.</strong> References</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../references/bittorrent.html"><strong aria-hidden="true">4.1.</strong> BitTorrent</a></li><li class="chapter-item expanded "><a href="../references/metadata.html"><strong aria-hidden="true">4.2.</strong> Metadata</a></li><li class="chapter-item expanded "><a href="../references/cryptography.html"><strong aria-hidden="true">4.3.</strong> Cryptography</a></li></ol></li></ol>
             </div>
-            <div id="sidebar-resize-handle" class="sidebar-resize-handle"></div>
+            <div id="sidebar-resize-handle" class="sidebar-resize-handle">
+                <div class="sidebar-resize-indicator"></div>
+            </div>
         </nav>
 
         <!-- Track and set sidebar scroll position -->
@@ -117,9 +124,9 @@
                                 <div id="menu-bar-hover-placeholder"></div>
                 <div id="menu-bar" class="menu-bar sticky">
                     <div class="left-buttons">
-                        <button id="sidebar-toggle" class="icon-button" type="button" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
+                        <label id="sidebar-toggle" class="icon-button" for="sidebar-toggle-anchor" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
                             <i class="fa fa-bars"></i>
-                        </button>
+                        </label>
                         <button id="theme-toggle" class="icon-button" type="button" title="Change theme" aria-label="Change theme" aria-haspopup="true" aria-expanded="false" aria-controls="theme-list">
                             <i class="fa fa-paint-brush"></i>
                         </button>
@@ -243,7 +250,7 @@ <h1 id="bep-support"><a class="header" href="#bep-support">BEP Support</a></h1>
                                 <i class="fa fa-angle-left"></i>
                             </a>
 
-                            <a rel="next" href="../bittorrent/metainfo-utilities.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
+                            <a rel="next prefetch" href="../bittorrent/metainfo-utilities.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
                                 <i class="fa fa-angle-right"></i>
                             </a>
 
@@ -257,7 +264,7 @@ <h1 id="bep-support"><a class="header" href="#bep-support">BEP Support</a></h1>
                         <i class="fa fa-angle-left"></i>
                     </a>
 
-                    <a rel="next" href="../bittorrent/metainfo-utilities.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
+                    <a rel="next prefetch" href="../bittorrent/metainfo-utilities.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
                         <i class="fa fa-angle-right"></i>
                     </a>
             </nav>
diff --git a/book/bittorrent/distributing-large-data-sets.html b/book/bittorrent/distributing-large-data-sets.html
index 8cec6c0c..d5406c5a 100644
--- a/book/bittorrent/distributing-large-data-sets.html
+++ b/book/bittorrent/distributing-large-data-sets.html
@@ -1,5 +1,5 @@
 <!DOCTYPE HTML>
-<html lang="en" class="sidebar-visible no-js ayu">
+<html lang="en" class="ayu" dir="ltr">
     <head>
         <!-- Book generated using mdBook -->
         <meta charset="UTF-8">
@@ -10,7 +10,7 @@
         
         <meta name="description" content="">
         <meta name="viewport" content="width=device-width, initial-scale=1">
-        <meta name="theme-color" content="#ffffff" />
+        <meta name="theme-color" content="#ffffff">
 
         <link rel="icon" href="../favicon.svg">
         <link rel="shortcut icon" href="../favicon.png">
@@ -32,7 +32,7 @@
         <link rel="stylesheet" href="../custom.css">
 
     </head>
-    <body>
+    <body class="sidebar-visible no-js">
     <div id="body-container">
         <!-- Provide site root to javascript -->
         <script>
@@ -62,31 +62,38 @@
             try { theme = localStorage.getItem('mdbook-theme'); } catch(e) { }
             if (theme === null || theme === undefined) { theme = default_theme; }
             var html = document.querySelector('html');
-            html.classList.remove('no-js')
             html.classList.remove('ayu')
             html.classList.add(theme);
-            html.classList.add('js');
+            var body = document.querySelector('body');
+            body.classList.remove('no-js')
+            body.classList.add('js');
         </script>
 
+        <input type="checkbox" id="sidebar-toggle-anchor" class="hidden">
+
         <!-- Hide / unhide sidebar before it is displayed -->
         <script>
-            var html = document.querySelector('html');
+            var body = document.querySelector('body');
             var sidebar = null;
+            var sidebar_toggle = document.getElementById("sidebar-toggle-anchor");
             if (document.body.clientWidth >= 1080) {
                 try { sidebar = localStorage.getItem('mdbook-sidebar'); } catch(e) { }
                 sidebar = sidebar || 'visible';
             } else {
                 sidebar = 'hidden';
             }
-            html.classList.remove('sidebar-visible');
-            html.classList.add("sidebar-" + sidebar);
+            sidebar_toggle.checked = sidebar === 'visible';
+            body.classList.remove('sidebar-visible');
+            body.classList.add("sidebar-" + sidebar);
         </script>
 
         <nav id="sidebar" class="sidebar" aria-label="Table of contents">
             <div class="sidebar-scrollbox">
                 <ol class="chapter"><li class="chapter-item expanded affix "><a href="../introduction.html">Intermodal</a></li><li class="chapter-item expanded "><a href="../faq.html"><strong aria-hidden="true">1.</strong> FAQ</a></li><li class="chapter-item expanded "><a href="../commands.html"><strong aria-hidden="true">2.</strong> Commands</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../commands/imdl.html"><strong aria-hidden="true">2.1.</strong> imdl</a></li><li class="chapter-item expanded "><a href="../commands/imdl-completions.html"><strong aria-hidden="true">2.2.</strong> imdl completions</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent.html"><strong aria-hidden="true">2.3.</strong> imdl torrent</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-announce.html"><strong aria-hidden="true">2.4.</strong> imdl torrent announce</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-create.html"><strong aria-hidden="true">2.5.</strong> imdl torrent create</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-from-link.html"><strong aria-hidden="true">2.6.</strong> imdl torrent from-link</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-link.html"><strong aria-hidden="true">2.7.</strong> imdl torrent link</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-piece-length.html"><strong aria-hidden="true">2.8.</strong> imdl torrent piece-length</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-show.html"><strong aria-hidden="true">2.9.</strong> imdl torrent show</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-stats.html"><strong aria-hidden="true">2.10.</strong> imdl torrent stats</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-verify.html"><strong aria-hidden="true">2.11.</strong> imdl torrent verify</a></li></ol></li><li class="chapter-item expanded "><a href="../bittorrent.html"><strong aria-hidden="true">3.</strong> Bittorrent</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../bittorrent/piece-length-selection.html"><strong aria-hidden="true">3.1.</strong> Piece Length Selection</a></li><li class="chapter-item expanded "><a href="../bittorrent/bep-support.html"><strong aria-hidden="true">3.2.</strong> BEP Support</a></li><li class="chapter-item expanded "><a href="../bittorrent/metainfo-utilities.html"><strong aria-hidden="true">3.3.</strong> Metainfo Utilities</a></li><li class="chapter-item expanded "><a href="../bittorrent/distributing-large-data-sets.html" class="active"><strong aria-hidden="true">3.4.</strong> Distributing Large Data Sets</a></li><li class="chapter-item expanded "><a href="../bittorrent/udp-tracker-protocol.html"><strong aria-hidden="true">3.5.</strong> UDP Tracker Protocol</a></li></ol></li><li class="chapter-item expanded "><a href="../references.html"><strong aria-hidden="true">4.</strong> References</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../references/bittorrent.html"><strong aria-hidden="true">4.1.</strong> BitTorrent</a></li><li class="chapter-item expanded "><a href="../references/metadata.html"><strong aria-hidden="true">4.2.</strong> Metadata</a></li><li class="chapter-item expanded "><a href="../references/cryptography.html"><strong aria-hidden="true">4.3.</strong> Cryptography</a></li></ol></li></ol>
             </div>
-            <div id="sidebar-resize-handle" class="sidebar-resize-handle"></div>
+            <div id="sidebar-resize-handle" class="sidebar-resize-handle">
+                <div class="sidebar-resize-indicator"></div>
+            </div>
         </nav>
 
         <!-- Track and set sidebar scroll position -->
@@ -117,9 +124,9 @@
                                 <div id="menu-bar-hover-placeholder"></div>
                 <div id="menu-bar" class="menu-bar sticky">
                     <div class="left-buttons">
-                        <button id="sidebar-toggle" class="icon-button" type="button" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
+                        <label id="sidebar-toggle" class="icon-button" for="sidebar-toggle-anchor" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
                             <i class="fa fa-bars"></i>
-                        </button>
+                        </label>
                         <button id="theme-toggle" class="icon-button" type="button" title="Change theme" aria-label="Change theme" aria-haspopup="true" aria-expanded="false" aria-controls="theme-list">
                             <i class="fa fa-paint-brush"></i>
                         </button>
@@ -284,7 +291,7 @@ <h2 id="conclusion"><a class="header" href="#conclusion">Conclusion</a></h2>
                                 <i class="fa fa-angle-left"></i>
                             </a>
 
-                            <a rel="next" href="../bittorrent/udp-tracker-protocol.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
+                            <a rel="next prefetch" href="../bittorrent/udp-tracker-protocol.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
                                 <i class="fa fa-angle-right"></i>
                             </a>
 
@@ -298,7 +305,7 @@ <h2 id="conclusion"><a class="header" href="#conclusion">Conclusion</a></h2>
                         <i class="fa fa-angle-left"></i>
                     </a>
 
-                    <a rel="next" href="../bittorrent/udp-tracker-protocol.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
+                    <a rel="next prefetch" href="../bittorrent/udp-tracker-protocol.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
                         <i class="fa fa-angle-right"></i>
                     </a>
             </nav>
diff --git a/book/bittorrent/metainfo-utilities.html b/book/bittorrent/metainfo-utilities.html
index 38730e51..83ac1b1b 100644
--- a/book/bittorrent/metainfo-utilities.html
+++ b/book/bittorrent/metainfo-utilities.html
@@ -1,5 +1,5 @@
 <!DOCTYPE HTML>
-<html lang="en" class="sidebar-visible no-js ayu">
+<html lang="en" class="ayu" dir="ltr">
     <head>
         <!-- Book generated using mdBook -->
         <meta charset="UTF-8">
@@ -10,7 +10,7 @@
         
         <meta name="description" content="">
         <meta name="viewport" content="width=device-width, initial-scale=1">
-        <meta name="theme-color" content="#ffffff" />
+        <meta name="theme-color" content="#ffffff">
 
         <link rel="icon" href="../favicon.svg">
         <link rel="shortcut icon" href="../favicon.png">
@@ -32,7 +32,7 @@
         <link rel="stylesheet" href="../custom.css">
 
     </head>
-    <body>
+    <body class="sidebar-visible no-js">
     <div id="body-container">
         <!-- Provide site root to javascript -->
         <script>
@@ -62,31 +62,38 @@
             try { theme = localStorage.getItem('mdbook-theme'); } catch(e) { }
             if (theme === null || theme === undefined) { theme = default_theme; }
             var html = document.querySelector('html');
-            html.classList.remove('no-js')
             html.classList.remove('ayu')
             html.classList.add(theme);
-            html.classList.add('js');
+            var body = document.querySelector('body');
+            body.classList.remove('no-js')
+            body.classList.add('js');
         </script>
 
+        <input type="checkbox" id="sidebar-toggle-anchor" class="hidden">
+
         <!-- Hide / unhide sidebar before it is displayed -->
         <script>
-            var html = document.querySelector('html');
+            var body = document.querySelector('body');
             var sidebar = null;
+            var sidebar_toggle = document.getElementById("sidebar-toggle-anchor");
             if (document.body.clientWidth >= 1080) {
                 try { sidebar = localStorage.getItem('mdbook-sidebar'); } catch(e) { }
                 sidebar = sidebar || 'visible';
             } else {
                 sidebar = 'hidden';
             }
-            html.classList.remove('sidebar-visible');
-            html.classList.add("sidebar-" + sidebar);
+            sidebar_toggle.checked = sidebar === 'visible';
+            body.classList.remove('sidebar-visible');
+            body.classList.add("sidebar-" + sidebar);
         </script>
 
         <nav id="sidebar" class="sidebar" aria-label="Table of contents">
             <div class="sidebar-scrollbox">
                 <ol class="chapter"><li class="chapter-item expanded affix "><a href="../introduction.html">Intermodal</a></li><li class="chapter-item expanded "><a href="../faq.html"><strong aria-hidden="true">1.</strong> FAQ</a></li><li class="chapter-item expanded "><a href="../commands.html"><strong aria-hidden="true">2.</strong> Commands</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../commands/imdl.html"><strong aria-hidden="true">2.1.</strong> imdl</a></li><li class="chapter-item expanded "><a href="../commands/imdl-completions.html"><strong aria-hidden="true">2.2.</strong> imdl completions</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent.html"><strong aria-hidden="true">2.3.</strong> imdl torrent</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-announce.html"><strong aria-hidden="true">2.4.</strong> imdl torrent announce</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-create.html"><strong aria-hidden="true">2.5.</strong> imdl torrent create</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-from-link.html"><strong aria-hidden="true">2.6.</strong> imdl torrent from-link</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-link.html"><strong aria-hidden="true">2.7.</strong> imdl torrent link</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-piece-length.html"><strong aria-hidden="true">2.8.</strong> imdl torrent piece-length</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-show.html"><strong aria-hidden="true">2.9.</strong> imdl torrent show</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-stats.html"><strong aria-hidden="true">2.10.</strong> imdl torrent stats</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-verify.html"><strong aria-hidden="true">2.11.</strong> imdl torrent verify</a></li></ol></li><li class="chapter-item expanded "><a href="../bittorrent.html"><strong aria-hidden="true">3.</strong> Bittorrent</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../bittorrent/piece-length-selection.html"><strong aria-hidden="true">3.1.</strong> Piece Length Selection</a></li><li class="chapter-item expanded "><a href="../bittorrent/bep-support.html"><strong aria-hidden="true">3.2.</strong> BEP Support</a></li><li class="chapter-item expanded "><a href="../bittorrent/metainfo-utilities.html" class="active"><strong aria-hidden="true">3.3.</strong> Metainfo Utilities</a></li><li class="chapter-item expanded "><a href="../bittorrent/distributing-large-data-sets.html"><strong aria-hidden="true">3.4.</strong> Distributing Large Data Sets</a></li><li class="chapter-item expanded "><a href="../bittorrent/udp-tracker-protocol.html"><strong aria-hidden="true">3.5.</strong> UDP Tracker Protocol</a></li></ol></li><li class="chapter-item expanded "><a href="../references.html"><strong aria-hidden="true">4.</strong> References</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../references/bittorrent.html"><strong aria-hidden="true">4.1.</strong> BitTorrent</a></li><li class="chapter-item expanded "><a href="../references/metadata.html"><strong aria-hidden="true">4.2.</strong> Metadata</a></li><li class="chapter-item expanded "><a href="../references/cryptography.html"><strong aria-hidden="true">4.3.</strong> Cryptography</a></li></ol></li></ol>
             </div>
-            <div id="sidebar-resize-handle" class="sidebar-resize-handle"></div>
+            <div id="sidebar-resize-handle" class="sidebar-resize-handle">
+                <div class="sidebar-resize-indicator"></div>
+            </div>
         </nav>
 
         <!-- Track and set sidebar scroll position -->
@@ -117,9 +124,9 @@
                                 <div id="menu-bar-hover-placeholder"></div>
                 <div id="menu-bar" class="menu-bar sticky">
                     <div class="left-buttons">
-                        <button id="sidebar-toggle" class="icon-button" type="button" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
+                        <label id="sidebar-toggle" class="icon-button" for="sidebar-toggle-anchor" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
                             <i class="fa fa-bars"></i>
-                        </button>
+                        </label>
                         <button id="theme-toggle" class="icon-button" type="button" title="Change theme" aria-label="Change theme" aria-haspopup="true" aria-expanded="false" aria-controls="theme-list">
                             <i class="fa fa-paint-brush"></i>
                         </button>
@@ -198,7 +205,7 @@ <h1 id="metainfo-utilities"><a class="header" href="#metainfo-utilities">Metainf
                                 <i class="fa fa-angle-left"></i>
                             </a>
 
-                            <a rel="next" href="../bittorrent/distributing-large-data-sets.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
+                            <a rel="next prefetch" href="../bittorrent/distributing-large-data-sets.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
                                 <i class="fa fa-angle-right"></i>
                             </a>
 
@@ -212,7 +219,7 @@ <h1 id="metainfo-utilities"><a class="header" href="#metainfo-utilities">Metainf
                         <i class="fa fa-angle-left"></i>
                     </a>
 
-                    <a rel="next" href="../bittorrent/distributing-large-data-sets.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
+                    <a rel="next prefetch" href="../bittorrent/distributing-large-data-sets.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
                         <i class="fa fa-angle-right"></i>
                     </a>
             </nav>
diff --git a/book/bittorrent/piece-length-selection.html b/book/bittorrent/piece-length-selection.html
index 002cc362..3038f981 100644
--- a/book/bittorrent/piece-length-selection.html
+++ b/book/bittorrent/piece-length-selection.html
@@ -1,5 +1,5 @@
 <!DOCTYPE HTML>
-<html lang="en" class="sidebar-visible no-js ayu">
+<html lang="en" class="ayu" dir="ltr">
     <head>
         <!-- Book generated using mdBook -->
         <meta charset="UTF-8">
@@ -10,7 +10,7 @@
         
         <meta name="description" content="">
         <meta name="viewport" content="width=device-width, initial-scale=1">
-        <meta name="theme-color" content="#ffffff" />
+        <meta name="theme-color" content="#ffffff">
 
         <link rel="icon" href="../favicon.svg">
         <link rel="shortcut icon" href="../favicon.png">
@@ -32,7 +32,7 @@
         <link rel="stylesheet" href="../custom.css">
 
     </head>
-    <body>
+    <body class="sidebar-visible no-js">
     <div id="body-container">
         <!-- Provide site root to javascript -->
         <script>
@@ -62,31 +62,38 @@
             try { theme = localStorage.getItem('mdbook-theme'); } catch(e) { }
             if (theme === null || theme === undefined) { theme = default_theme; }
             var html = document.querySelector('html');
-            html.classList.remove('no-js')
             html.classList.remove('ayu')
             html.classList.add(theme);
-            html.classList.add('js');
+            var body = document.querySelector('body');
+            body.classList.remove('no-js')
+            body.classList.add('js');
         </script>
 
+        <input type="checkbox" id="sidebar-toggle-anchor" class="hidden">
+
         <!-- Hide / unhide sidebar before it is displayed -->
         <script>
-            var html = document.querySelector('html');
+            var body = document.querySelector('body');
             var sidebar = null;
+            var sidebar_toggle = document.getElementById("sidebar-toggle-anchor");
             if (document.body.clientWidth >= 1080) {
                 try { sidebar = localStorage.getItem('mdbook-sidebar'); } catch(e) { }
                 sidebar = sidebar || 'visible';
             } else {
                 sidebar = 'hidden';
             }
-            html.classList.remove('sidebar-visible');
-            html.classList.add("sidebar-" + sidebar);
+            sidebar_toggle.checked = sidebar === 'visible';
+            body.classList.remove('sidebar-visible');
+            body.classList.add("sidebar-" + sidebar);
         </script>
 
         <nav id="sidebar" class="sidebar" aria-label="Table of contents">
             <div class="sidebar-scrollbox">
                 <ol class="chapter"><li class="chapter-item expanded affix "><a href="../introduction.html">Intermodal</a></li><li class="chapter-item expanded "><a href="../faq.html"><strong aria-hidden="true">1.</strong> FAQ</a></li><li class="chapter-item expanded "><a href="../commands.html"><strong aria-hidden="true">2.</strong> Commands</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../commands/imdl.html"><strong aria-hidden="true">2.1.</strong> imdl</a></li><li class="chapter-item expanded "><a href="../commands/imdl-completions.html"><strong aria-hidden="true">2.2.</strong> imdl completions</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent.html"><strong aria-hidden="true">2.3.</strong> imdl torrent</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-announce.html"><strong aria-hidden="true">2.4.</strong> imdl torrent announce</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-create.html"><strong aria-hidden="true">2.5.</strong> imdl torrent create</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-from-link.html"><strong aria-hidden="true">2.6.</strong> imdl torrent from-link</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-link.html"><strong aria-hidden="true">2.7.</strong> imdl torrent link</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-piece-length.html"><strong aria-hidden="true">2.8.</strong> imdl torrent piece-length</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-show.html"><strong aria-hidden="true">2.9.</strong> imdl torrent show</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-stats.html"><strong aria-hidden="true">2.10.</strong> imdl torrent stats</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-verify.html"><strong aria-hidden="true">2.11.</strong> imdl torrent verify</a></li></ol></li><li class="chapter-item expanded "><a href="../bittorrent.html"><strong aria-hidden="true">3.</strong> Bittorrent</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../bittorrent/piece-length-selection.html" class="active"><strong aria-hidden="true">3.1.</strong> Piece Length Selection</a></li><li class="chapter-item expanded "><a href="../bittorrent/bep-support.html"><strong aria-hidden="true">3.2.</strong> BEP Support</a></li><li class="chapter-item expanded "><a href="../bittorrent/metainfo-utilities.html"><strong aria-hidden="true">3.3.</strong> Metainfo Utilities</a></li><li class="chapter-item expanded "><a href="../bittorrent/distributing-large-data-sets.html"><strong aria-hidden="true">3.4.</strong> Distributing Large Data Sets</a></li><li class="chapter-item expanded "><a href="../bittorrent/udp-tracker-protocol.html"><strong aria-hidden="true">3.5.</strong> UDP Tracker Protocol</a></li></ol></li><li class="chapter-item expanded "><a href="../references.html"><strong aria-hidden="true">4.</strong> References</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../references/bittorrent.html"><strong aria-hidden="true">4.1.</strong> BitTorrent</a></li><li class="chapter-item expanded "><a href="../references/metadata.html"><strong aria-hidden="true">4.2.</strong> Metadata</a></li><li class="chapter-item expanded "><a href="../references/cryptography.html"><strong aria-hidden="true">4.3.</strong> Cryptography</a></li></ol></li></ol>
             </div>
-            <div id="sidebar-resize-handle" class="sidebar-resize-handle"></div>
+            <div id="sidebar-resize-handle" class="sidebar-resize-handle">
+                <div class="sidebar-resize-indicator"></div>
+            </div>
         </nav>
 
         <!-- Track and set sidebar scroll position -->
@@ -117,9 +124,9 @@
                                 <div id="menu-bar-hover-placeholder"></div>
                 <div id="menu-bar" class="menu-bar sticky">
                     <div class="left-buttons">
-                        <button id="sidebar-toggle" class="icon-button" type="button" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
+                        <label id="sidebar-toggle" class="icon-button" for="sidebar-toggle-anchor" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
                             <i class="fa fa-bars"></i>
-                        </button>
+                        </label>
                         <button id="theme-toggle" class="icon-button" type="button" title="Change theme" aria-label="Change theme" aria-haspopup="true" aria-expanded="false" aria-controls="theme-list">
                             <i class="fa fa-paint-brush"></i>
                         </button>
@@ -298,7 +305,7 @@ <h3 id="implementations"><a class="header" href="#implementations">Implementatio
                                 <i class="fa fa-angle-left"></i>
                             </a>
 
-                            <a rel="next" href="../bittorrent/bep-support.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
+                            <a rel="next prefetch" href="../bittorrent/bep-support.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
                                 <i class="fa fa-angle-right"></i>
                             </a>
 
@@ -312,7 +319,7 @@ <h3 id="implementations"><a class="header" href="#implementations">Implementatio
                         <i class="fa fa-angle-left"></i>
                     </a>
 
-                    <a rel="next" href="../bittorrent/bep-support.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
+                    <a rel="next prefetch" href="../bittorrent/bep-support.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
                         <i class="fa fa-angle-right"></i>
                     </a>
             </nav>
diff --git a/book/bittorrent/udp-tracker-protocol.html b/book/bittorrent/udp-tracker-protocol.html
index a5287337..2fc5f318 100644
--- a/book/bittorrent/udp-tracker-protocol.html
+++ b/book/bittorrent/udp-tracker-protocol.html
@@ -1,5 +1,5 @@
 <!DOCTYPE HTML>
-<html lang="en" class="sidebar-visible no-js ayu">
+<html lang="en" class="ayu" dir="ltr">
     <head>
         <!-- Book generated using mdBook -->
         <meta charset="UTF-8">
@@ -10,7 +10,7 @@
         
         <meta name="description" content="">
         <meta name="viewport" content="width=device-width, initial-scale=1">
-        <meta name="theme-color" content="#ffffff" />
+        <meta name="theme-color" content="#ffffff">
 
         <link rel="icon" href="../favicon.svg">
         <link rel="shortcut icon" href="../favicon.png">
@@ -32,7 +32,7 @@
         <link rel="stylesheet" href="../custom.css">
 
     </head>
-    <body>
+    <body class="sidebar-visible no-js">
     <div id="body-container">
         <!-- Provide site root to javascript -->
         <script>
@@ -62,31 +62,38 @@
             try { theme = localStorage.getItem('mdbook-theme'); } catch(e) { }
             if (theme === null || theme === undefined) { theme = default_theme; }
             var html = document.querySelector('html');
-            html.classList.remove('no-js')
             html.classList.remove('ayu')
             html.classList.add(theme);
-            html.classList.add('js');
+            var body = document.querySelector('body');
+            body.classList.remove('no-js')
+            body.classList.add('js');
         </script>
 
+        <input type="checkbox" id="sidebar-toggle-anchor" class="hidden">
+
         <!-- Hide / unhide sidebar before it is displayed -->
         <script>
-            var html = document.querySelector('html');
+            var body = document.querySelector('body');
             var sidebar = null;
+            var sidebar_toggle = document.getElementById("sidebar-toggle-anchor");
             if (document.body.clientWidth >= 1080) {
                 try { sidebar = localStorage.getItem('mdbook-sidebar'); } catch(e) { }
                 sidebar = sidebar || 'visible';
             } else {
                 sidebar = 'hidden';
             }
-            html.classList.remove('sidebar-visible');
-            html.classList.add("sidebar-" + sidebar);
+            sidebar_toggle.checked = sidebar === 'visible';
+            body.classList.remove('sidebar-visible');
+            body.classList.add("sidebar-" + sidebar);
         </script>
 
         <nav id="sidebar" class="sidebar" aria-label="Table of contents">
             <div class="sidebar-scrollbox">
                 <ol class="chapter"><li class="chapter-item expanded affix "><a href="../introduction.html">Intermodal</a></li><li class="chapter-item expanded "><a href="../faq.html"><strong aria-hidden="true">1.</strong> FAQ</a></li><li class="chapter-item expanded "><a href="../commands.html"><strong aria-hidden="true">2.</strong> Commands</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../commands/imdl.html"><strong aria-hidden="true">2.1.</strong> imdl</a></li><li class="chapter-item expanded "><a href="../commands/imdl-completions.html"><strong aria-hidden="true">2.2.</strong> imdl completions</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent.html"><strong aria-hidden="true">2.3.</strong> imdl torrent</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-announce.html"><strong aria-hidden="true">2.4.</strong> imdl torrent announce</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-create.html"><strong aria-hidden="true">2.5.</strong> imdl torrent create</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-from-link.html"><strong aria-hidden="true">2.6.</strong> imdl torrent from-link</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-link.html"><strong aria-hidden="true">2.7.</strong> imdl torrent link</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-piece-length.html"><strong aria-hidden="true">2.8.</strong> imdl torrent piece-length</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-show.html"><strong aria-hidden="true">2.9.</strong> imdl torrent show</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-stats.html"><strong aria-hidden="true">2.10.</strong> imdl torrent stats</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-verify.html"><strong aria-hidden="true">2.11.</strong> imdl torrent verify</a></li></ol></li><li class="chapter-item expanded "><a href="../bittorrent.html"><strong aria-hidden="true">3.</strong> Bittorrent</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../bittorrent/piece-length-selection.html"><strong aria-hidden="true">3.1.</strong> Piece Length Selection</a></li><li class="chapter-item expanded "><a href="../bittorrent/bep-support.html"><strong aria-hidden="true">3.2.</strong> BEP Support</a></li><li class="chapter-item expanded "><a href="../bittorrent/metainfo-utilities.html"><strong aria-hidden="true">3.3.</strong> Metainfo Utilities</a></li><li class="chapter-item expanded "><a href="../bittorrent/distributing-large-data-sets.html"><strong aria-hidden="true">3.4.</strong> Distributing Large Data Sets</a></li><li class="chapter-item expanded "><a href="../bittorrent/udp-tracker-protocol.html" class="active"><strong aria-hidden="true">3.5.</strong> UDP Tracker Protocol</a></li></ol></li><li class="chapter-item expanded "><a href="../references.html"><strong aria-hidden="true">4.</strong> References</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../references/bittorrent.html"><strong aria-hidden="true">4.1.</strong> BitTorrent</a></li><li class="chapter-item expanded "><a href="../references/metadata.html"><strong aria-hidden="true">4.2.</strong> Metadata</a></li><li class="chapter-item expanded "><a href="../references/cryptography.html"><strong aria-hidden="true">4.3.</strong> Cryptography</a></li></ol></li></ol>
             </div>
-            <div id="sidebar-resize-handle" class="sidebar-resize-handle"></div>
+            <div id="sidebar-resize-handle" class="sidebar-resize-handle">
+                <div class="sidebar-resize-indicator"></div>
+            </div>
         </nav>
 
         <!-- Track and set sidebar scroll position -->
@@ -117,9 +124,9 @@
                                 <div id="menu-bar-hover-placeholder"></div>
                 <div id="menu-bar" class="menu-bar sticky">
                     <div class="left-buttons">
-                        <button id="sidebar-toggle" class="icon-button" type="button" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
+                        <label id="sidebar-toggle" class="icon-button" for="sidebar-toggle-anchor" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
                             <i class="fa fa-bars"></i>
-                        </button>
+                        </label>
                         <button id="theme-toggle" class="icon-button" type="button" title="Change theme" aria-label="Change theme" aria-haspopup="true" aria-expanded="false" aria-controls="theme-list">
                             <i class="fa fa-paint-brush"></i>
                         </button>
@@ -339,7 +346,7 @@ <h2 id="credits"><a class="header" href="#credits">Credits</a></h2>
                                 <i class="fa fa-angle-left"></i>
                             </a>
 
-                            <a rel="next" href="../references.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
+                            <a rel="next prefetch" href="../references.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
                                 <i class="fa fa-angle-right"></i>
                             </a>
 
@@ -353,7 +360,7 @@ <h2 id="credits"><a class="header" href="#credits">Credits</a></h2>
                         <i class="fa fa-angle-left"></i>
                     </a>
 
-                    <a rel="next" href="../references.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
+                    <a rel="next prefetch" href="../references.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
                         <i class="fa fa-angle-right"></i>
                     </a>
             </nav>
diff --git a/book/book.js b/book/book.js
index 351e28c7..aa12e7ec 100644
--- a/book/book.js
+++ b/book/book.js
@@ -441,7 +441,7 @@ function playground_text(playground, hidden = true) {
 })();
 
 (function sidebar() {
-    var html = document.querySelector("html");
+    var body = document.querySelector("body");
     var sidebar = document.getElementById("sidebar");
     var sidebarLinks = document.querySelectorAll('#sidebar a');
     var sidebarToggleButton = document.getElementById("sidebar-toggle");
@@ -449,8 +449,8 @@ function playground_text(playground, hidden = true) {
     var firstContact = null;
 
     function showSidebar() {
-        html.classList.remove('sidebar-hidden')
-        html.classList.add('sidebar-visible');
+        body.classList.remove('sidebar-hidden')
+        body.classList.add('sidebar-visible');
         Array.from(sidebarLinks).forEach(function (link) {
             link.setAttribute('tabIndex', 0);
         });
@@ -471,8 +471,8 @@ function playground_text(playground, hidden = true) {
     });
 
     function hideSidebar() {
-        html.classList.remove('sidebar-visible')
-        html.classList.add('sidebar-hidden');
+        body.classList.remove('sidebar-visible')
+        body.classList.add('sidebar-hidden');
         Array.from(sidebarLinks).forEach(function (link) {
             link.setAttribute('tabIndex', -1);
         });
@@ -483,14 +483,14 @@ function playground_text(playground, hidden = true) {
 
     // Toggle sidebar
     sidebarToggleButton.addEventListener('click', function sidebarToggle() {
-        if (html.classList.contains("sidebar-hidden")) {
+        if (body.classList.contains("sidebar-hidden")) {
             var current_width = parseInt(
                 document.documentElement.style.getPropertyValue('--sidebar-width'), 10);
             if (current_width < 150) {
                 document.documentElement.style.setProperty('--sidebar-width', '150px');
             }
             showSidebar();
-        } else if (html.classList.contains("sidebar-visible")) {
+        } else if (body.classList.contains("sidebar-visible")) {
             hideSidebar();
         } else {
             if (getComputedStyle(sidebar)['transform'] === 'none') {
@@ -506,14 +506,14 @@ function playground_text(playground, hidden = true) {
     function initResize(e) {
         window.addEventListener('mousemove', resize, false);
         window.addEventListener('mouseup', stopResize, false);
-        html.classList.add('sidebar-resizing');
+        body.classList.add('sidebar-resizing');
     }
     function resize(e) {
         var pos = (e.clientX - sidebar.offsetLeft);
         if (pos < 20) {
             hideSidebar();
         } else {
-            if (html.classList.contains("sidebar-hidden")) {
+            if (body.classList.contains("sidebar-hidden")) {
                 showSidebar();
             }
             pos = Math.min(pos, window.innerWidth - 100);
@@ -522,7 +522,7 @@ function playground_text(playground, hidden = true) {
     }
     //on mouseup remove windows functions mousemove & mouseup
     function stopResize(e) {
-        html.classList.remove('sidebar-resizing');
+        body.classList.remove('sidebar-resizing');
         window.removeEventListener('mousemove', resize, false);
         window.removeEventListener('mouseup', stopResize, false);
     }
@@ -557,20 +557,35 @@ function playground_text(playground, hidden = true) {
     document.addEventListener('keydown', function (e) {
         if (e.altKey || e.ctrlKey || e.metaKey || e.shiftKey) { return; }
         if (window.search && window.search.hasFocus()) { return; }
+        var html = document.querySelector('html');
 
+        function next() {
+            var nextButton = document.querySelector('.nav-chapters.next');
+            if (nextButton) {
+                window.location.href = nextButton.href;
+            }
+        }
+        function prev() {
+            var previousButton = document.querySelector('.nav-chapters.previous');
+            if (previousButton) {
+                window.location.href = previousButton.href;
+            }
+        }
         switch (e.key) {
             case 'ArrowRight':
                 e.preventDefault();
-                var nextButton = document.querySelector('.nav-chapters.next');
-                if (nextButton) {
-                    window.location.href = nextButton.href;
+                if (html.dir == 'rtl') {
+                    prev();
+                } else {
+                    next();
                 }
                 break;
             case 'ArrowLeft':
                 e.preventDefault();
-                var previousButton = document.querySelector('.nav-chapters.previous');
-                if (previousButton) {
-                    window.location.href = previousButton.href;
+                if (html.dir == 'rtl') {
+                    next();
+                } else {
+                    prev();
                 }
                 break;
         }
diff --git a/book/commands.html b/book/commands.html
index 9a78ca3d..adebc31b 100644
--- a/book/commands.html
+++ b/book/commands.html
@@ -1,5 +1,5 @@
 <!DOCTYPE HTML>
-<html lang="en" class="sidebar-visible no-js ayu">
+<html lang="en" class="ayu" dir="ltr">
     <head>
         <!-- Book generated using mdBook -->
         <meta charset="UTF-8">
@@ -10,7 +10,7 @@
         
         <meta name="description" content="">
         <meta name="viewport" content="width=device-width, initial-scale=1">
-        <meta name="theme-color" content="#ffffff" />
+        <meta name="theme-color" content="#ffffff">
 
         <link rel="icon" href="favicon.svg">
         <link rel="shortcut icon" href="favicon.png">
@@ -32,7 +32,7 @@
         <link rel="stylesheet" href="custom.css">
 
     </head>
-    <body>
+    <body class="sidebar-visible no-js">
     <div id="body-container">
         <!-- Provide site root to javascript -->
         <script>
@@ -62,31 +62,38 @@
             try { theme = localStorage.getItem('mdbook-theme'); } catch(e) { }
             if (theme === null || theme === undefined) { theme = default_theme; }
             var html = document.querySelector('html');
-            html.classList.remove('no-js')
             html.classList.remove('ayu')
             html.classList.add(theme);
-            html.classList.add('js');
+            var body = document.querySelector('body');
+            body.classList.remove('no-js')
+            body.classList.add('js');
         </script>
 
+        <input type="checkbox" id="sidebar-toggle-anchor" class="hidden">
+
         <!-- Hide / unhide sidebar before it is displayed -->
         <script>
-            var html = document.querySelector('html');
+            var body = document.querySelector('body');
             var sidebar = null;
+            var sidebar_toggle = document.getElementById("sidebar-toggle-anchor");
             if (document.body.clientWidth >= 1080) {
                 try { sidebar = localStorage.getItem('mdbook-sidebar'); } catch(e) { }
                 sidebar = sidebar || 'visible';
             } else {
                 sidebar = 'hidden';
             }
-            html.classList.remove('sidebar-visible');
-            html.classList.add("sidebar-" + sidebar);
+            sidebar_toggle.checked = sidebar === 'visible';
+            body.classList.remove('sidebar-visible');
+            body.classList.add("sidebar-" + sidebar);
         </script>
 
         <nav id="sidebar" class="sidebar" aria-label="Table of contents">
             <div class="sidebar-scrollbox">
                 <ol class="chapter"><li class="chapter-item expanded affix "><a href="introduction.html">Intermodal</a></li><li class="chapter-item expanded "><a href="faq.html"><strong aria-hidden="true">1.</strong> FAQ</a></li><li class="chapter-item expanded "><a href="commands.html" class="active"><strong aria-hidden="true">2.</strong> Commands</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="commands/imdl.html"><strong aria-hidden="true">2.1.</strong> imdl</a></li><li class="chapter-item expanded "><a href="commands/imdl-completions.html"><strong aria-hidden="true">2.2.</strong> imdl completions</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent.html"><strong aria-hidden="true">2.3.</strong> imdl torrent</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-announce.html"><strong aria-hidden="true">2.4.</strong> imdl torrent announce</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-create.html"><strong aria-hidden="true">2.5.</strong> imdl torrent create</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-from-link.html"><strong aria-hidden="true">2.6.</strong> imdl torrent from-link</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-link.html"><strong aria-hidden="true">2.7.</strong> imdl torrent link</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-piece-length.html"><strong aria-hidden="true">2.8.</strong> imdl torrent piece-length</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-show.html"><strong aria-hidden="true">2.9.</strong> imdl torrent show</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-stats.html"><strong aria-hidden="true">2.10.</strong> imdl torrent stats</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-verify.html"><strong aria-hidden="true">2.11.</strong> imdl torrent verify</a></li></ol></li><li class="chapter-item expanded "><a href="bittorrent.html"><strong aria-hidden="true">3.</strong> Bittorrent</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="bittorrent/piece-length-selection.html"><strong aria-hidden="true">3.1.</strong> Piece Length Selection</a></li><li class="chapter-item expanded "><a href="bittorrent/bep-support.html"><strong aria-hidden="true">3.2.</strong> BEP Support</a></li><li class="chapter-item expanded "><a href="bittorrent/metainfo-utilities.html"><strong aria-hidden="true">3.3.</strong> Metainfo Utilities</a></li><li class="chapter-item expanded "><a href="bittorrent/distributing-large-data-sets.html"><strong aria-hidden="true">3.4.</strong> Distributing Large Data Sets</a></li><li class="chapter-item expanded "><a href="bittorrent/udp-tracker-protocol.html"><strong aria-hidden="true">3.5.</strong> UDP Tracker Protocol</a></li></ol></li><li class="chapter-item expanded "><a href="references.html"><strong aria-hidden="true">4.</strong> References</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="references/bittorrent.html"><strong aria-hidden="true">4.1.</strong> BitTorrent</a></li><li class="chapter-item expanded "><a href="references/metadata.html"><strong aria-hidden="true">4.2.</strong> Metadata</a></li><li class="chapter-item expanded "><a href="references/cryptography.html"><strong aria-hidden="true">4.3.</strong> Cryptography</a></li></ol></li></ol>
             </div>
-            <div id="sidebar-resize-handle" class="sidebar-resize-handle"></div>
+            <div id="sidebar-resize-handle" class="sidebar-resize-handle">
+                <div class="sidebar-resize-indicator"></div>
+            </div>
         </nav>
 
         <!-- Track and set sidebar scroll position -->
@@ -117,9 +124,9 @@
                                 <div id="menu-bar-hover-placeholder"></div>
                 <div id="menu-bar" class="menu-bar sticky">
                     <div class="left-buttons">
-                        <button id="sidebar-toggle" class="icon-button" type="button" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
+                        <label id="sidebar-toggle" class="icon-button" for="sidebar-toggle-anchor" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
                             <i class="fa fa-bars"></i>
-                        </button>
+                        </label>
                         <button id="theme-toggle" class="icon-button" type="button" title="Change theme" aria-label="Change theme" aria-haspopup="true" aria-expanded="false" aria-controls="theme-list">
                             <i class="fa fa-paint-brush"></i>
                         </button>
@@ -181,7 +188,7 @@ <h1 id="commands"><a class="header" href="#commands">Commands</a></h1>
                                 <i class="fa fa-angle-left"></i>
                             </a>
 
-                            <a rel="next" href="commands/imdl.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
+                            <a rel="next prefetch" href="commands/imdl.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
                                 <i class="fa fa-angle-right"></i>
                             </a>
 
@@ -195,7 +202,7 @@ <h1 id="commands"><a class="header" href="#commands">Commands</a></h1>
                         <i class="fa fa-angle-left"></i>
                     </a>
 
-                    <a rel="next" href="commands/imdl.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
+                    <a rel="next prefetch" href="commands/imdl.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
                         <i class="fa fa-angle-right"></i>
                     </a>
             </nav>
diff --git a/book/commands/imdl-completions.html b/book/commands/imdl-completions.html
index 81e6c44a..764fe009 100644
--- a/book/commands/imdl-completions.html
+++ b/book/commands/imdl-completions.html
@@ -1,5 +1,5 @@
 <!DOCTYPE HTML>
-<html lang="en" class="sidebar-visible no-js ayu">
+<html lang="en" class="ayu" dir="ltr">
     <head>
         <!-- Book generated using mdBook -->
         <meta charset="UTF-8">
@@ -10,7 +10,7 @@
         
         <meta name="description" content="">
         <meta name="viewport" content="width=device-width, initial-scale=1">
-        <meta name="theme-color" content="#ffffff" />
+        <meta name="theme-color" content="#ffffff">
 
         <link rel="icon" href="../favicon.svg">
         <link rel="shortcut icon" href="../favicon.png">
@@ -32,7 +32,7 @@
         <link rel="stylesheet" href="../custom.css">
 
     </head>
-    <body>
+    <body class="sidebar-visible no-js">
     <div id="body-container">
         <!-- Provide site root to javascript -->
         <script>
@@ -62,31 +62,38 @@
             try { theme = localStorage.getItem('mdbook-theme'); } catch(e) { }
             if (theme === null || theme === undefined) { theme = default_theme; }
             var html = document.querySelector('html');
-            html.classList.remove('no-js')
             html.classList.remove('ayu')
             html.classList.add(theme);
-            html.classList.add('js');
+            var body = document.querySelector('body');
+            body.classList.remove('no-js')
+            body.classList.add('js');
         </script>
 
+        <input type="checkbox" id="sidebar-toggle-anchor" class="hidden">
+
         <!-- Hide / unhide sidebar before it is displayed -->
         <script>
-            var html = document.querySelector('html');
+            var body = document.querySelector('body');
             var sidebar = null;
+            var sidebar_toggle = document.getElementById("sidebar-toggle-anchor");
             if (document.body.clientWidth >= 1080) {
                 try { sidebar = localStorage.getItem('mdbook-sidebar'); } catch(e) { }
                 sidebar = sidebar || 'visible';
             } else {
                 sidebar = 'hidden';
             }
-            html.classList.remove('sidebar-visible');
-            html.classList.add("sidebar-" + sidebar);
+            sidebar_toggle.checked = sidebar === 'visible';
+            body.classList.remove('sidebar-visible');
+            body.classList.add("sidebar-" + sidebar);
         </script>
 
         <nav id="sidebar" class="sidebar" aria-label="Table of contents">
             <div class="sidebar-scrollbox">
                 <ol class="chapter"><li class="chapter-item expanded affix "><a href="../introduction.html">Intermodal</a></li><li class="chapter-item expanded "><a href="../faq.html"><strong aria-hidden="true">1.</strong> FAQ</a></li><li class="chapter-item expanded "><a href="../commands.html"><strong aria-hidden="true">2.</strong> Commands</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../commands/imdl.html"><strong aria-hidden="true">2.1.</strong> imdl</a></li><li class="chapter-item expanded "><a href="../commands/imdl-completions.html" class="active"><strong aria-hidden="true">2.2.</strong> imdl completions</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent.html"><strong aria-hidden="true">2.3.</strong> imdl torrent</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-announce.html"><strong aria-hidden="true">2.4.</strong> imdl torrent announce</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-create.html"><strong aria-hidden="true">2.5.</strong> imdl torrent create</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-from-link.html"><strong aria-hidden="true">2.6.</strong> imdl torrent from-link</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-link.html"><strong aria-hidden="true">2.7.</strong> imdl torrent link</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-piece-length.html"><strong aria-hidden="true">2.8.</strong> imdl torrent piece-length</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-show.html"><strong aria-hidden="true">2.9.</strong> imdl torrent show</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-stats.html"><strong aria-hidden="true">2.10.</strong> imdl torrent stats</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-verify.html"><strong aria-hidden="true">2.11.</strong> imdl torrent verify</a></li></ol></li><li class="chapter-item expanded "><a href="../bittorrent.html"><strong aria-hidden="true">3.</strong> Bittorrent</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../bittorrent/piece-length-selection.html"><strong aria-hidden="true">3.1.</strong> Piece Length Selection</a></li><li class="chapter-item expanded "><a href="../bittorrent/bep-support.html"><strong aria-hidden="true">3.2.</strong> BEP Support</a></li><li class="chapter-item expanded "><a href="../bittorrent/metainfo-utilities.html"><strong aria-hidden="true">3.3.</strong> Metainfo Utilities</a></li><li class="chapter-item expanded "><a href="../bittorrent/distributing-large-data-sets.html"><strong aria-hidden="true">3.4.</strong> Distributing Large Data Sets</a></li><li class="chapter-item expanded "><a href="../bittorrent/udp-tracker-protocol.html"><strong aria-hidden="true">3.5.</strong> UDP Tracker Protocol</a></li></ol></li><li class="chapter-item expanded "><a href="../references.html"><strong aria-hidden="true">4.</strong> References</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../references/bittorrent.html"><strong aria-hidden="true">4.1.</strong> BitTorrent</a></li><li class="chapter-item expanded "><a href="../references/metadata.html"><strong aria-hidden="true">4.2.</strong> Metadata</a></li><li class="chapter-item expanded "><a href="../references/cryptography.html"><strong aria-hidden="true">4.3.</strong> Cryptography</a></li></ol></li></ol>
             </div>
-            <div id="sidebar-resize-handle" class="sidebar-resize-handle"></div>
+            <div id="sidebar-resize-handle" class="sidebar-resize-handle">
+                <div class="sidebar-resize-indicator"></div>
+            </div>
         </nav>
 
         <!-- Track and set sidebar scroll position -->
@@ -117,9 +124,9 @@
                                 <div id="menu-bar-hover-placeholder"></div>
                 <div id="menu-bar" class="menu-bar sticky">
                     <div class="left-buttons">
-                        <button id="sidebar-toggle" class="icon-button" type="button" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
+                        <label id="sidebar-toggle" class="icon-button" for="sidebar-toggle-anchor" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
                             <i class="fa fa-bars"></i>
-                        </button>
+                        </label>
                         <button id="theme-toggle" class="icon-button" type="button" title="Change theme" aria-label="Change theme" aria-haspopup="true" aria-expanded="false" aria-controls="theme-list">
                             <i class="fa fa-paint-brush"></i>
                         </button>
@@ -202,7 +209,7 @@ <h1 id="imdl-completions"><a class="header" href="#imdl-completions"><code>imdl
                                 <i class="fa fa-angle-left"></i>
                             </a>
 
-                            <a rel="next" href="../commands/imdl-torrent.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
+                            <a rel="next prefetch" href="../commands/imdl-torrent.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
                                 <i class="fa fa-angle-right"></i>
                             </a>
 
@@ -216,7 +223,7 @@ <h1 id="imdl-completions"><a class="header" href="#imdl-completions"><code>imdl
                         <i class="fa fa-angle-left"></i>
                     </a>
 
-                    <a rel="next" href="../commands/imdl-torrent.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
+                    <a rel="next prefetch" href="../commands/imdl-torrent.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
                         <i class="fa fa-angle-right"></i>
                     </a>
             </nav>
diff --git a/book/commands/imdl-torrent-announce.html b/book/commands/imdl-torrent-announce.html
index 96072a7c..626fb824 100644
--- a/book/commands/imdl-torrent-announce.html
+++ b/book/commands/imdl-torrent-announce.html
@@ -1,5 +1,5 @@
 <!DOCTYPE HTML>
-<html lang="en" class="sidebar-visible no-js ayu">
+<html lang="en" class="ayu" dir="ltr">
     <head>
         <!-- Book generated using mdBook -->
         <meta charset="UTF-8">
@@ -10,7 +10,7 @@
         
         <meta name="description" content="">
         <meta name="viewport" content="width=device-width, initial-scale=1">
-        <meta name="theme-color" content="#ffffff" />
+        <meta name="theme-color" content="#ffffff">
 
         <link rel="icon" href="../favicon.svg">
         <link rel="shortcut icon" href="../favicon.png">
@@ -32,7 +32,7 @@
         <link rel="stylesheet" href="../custom.css">
 
     </head>
-    <body>
+    <body class="sidebar-visible no-js">
     <div id="body-container">
         <!-- Provide site root to javascript -->
         <script>
@@ -62,31 +62,38 @@
             try { theme = localStorage.getItem('mdbook-theme'); } catch(e) { }
             if (theme === null || theme === undefined) { theme = default_theme; }
             var html = document.querySelector('html');
-            html.classList.remove('no-js')
             html.classList.remove('ayu')
             html.classList.add(theme);
-            html.classList.add('js');
+            var body = document.querySelector('body');
+            body.classList.remove('no-js')
+            body.classList.add('js');
         </script>
 
+        <input type="checkbox" id="sidebar-toggle-anchor" class="hidden">
+
         <!-- Hide / unhide sidebar before it is displayed -->
         <script>
-            var html = document.querySelector('html');
+            var body = document.querySelector('body');
             var sidebar = null;
+            var sidebar_toggle = document.getElementById("sidebar-toggle-anchor");
             if (document.body.clientWidth >= 1080) {
                 try { sidebar = localStorage.getItem('mdbook-sidebar'); } catch(e) { }
                 sidebar = sidebar || 'visible';
             } else {
                 sidebar = 'hidden';
             }
-            html.classList.remove('sidebar-visible');
-            html.classList.add("sidebar-" + sidebar);
+            sidebar_toggle.checked = sidebar === 'visible';
+            body.classList.remove('sidebar-visible');
+            body.classList.add("sidebar-" + sidebar);
         </script>
 
         <nav id="sidebar" class="sidebar" aria-label="Table of contents">
             <div class="sidebar-scrollbox">
                 <ol class="chapter"><li class="chapter-item expanded affix "><a href="../introduction.html">Intermodal</a></li><li class="chapter-item expanded "><a href="../faq.html"><strong aria-hidden="true">1.</strong> FAQ</a></li><li class="chapter-item expanded "><a href="../commands.html"><strong aria-hidden="true">2.</strong> Commands</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../commands/imdl.html"><strong aria-hidden="true">2.1.</strong> imdl</a></li><li class="chapter-item expanded "><a href="../commands/imdl-completions.html"><strong aria-hidden="true">2.2.</strong> imdl completions</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent.html"><strong aria-hidden="true">2.3.</strong> imdl torrent</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-announce.html" class="active"><strong aria-hidden="true">2.4.</strong> imdl torrent announce</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-create.html"><strong aria-hidden="true">2.5.</strong> imdl torrent create</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-from-link.html"><strong aria-hidden="true">2.6.</strong> imdl torrent from-link</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-link.html"><strong aria-hidden="true">2.7.</strong> imdl torrent link</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-piece-length.html"><strong aria-hidden="true">2.8.</strong> imdl torrent piece-length</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-show.html"><strong aria-hidden="true">2.9.</strong> imdl torrent show</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-stats.html"><strong aria-hidden="true">2.10.</strong> imdl torrent stats</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-verify.html"><strong aria-hidden="true">2.11.</strong> imdl torrent verify</a></li></ol></li><li class="chapter-item expanded "><a href="../bittorrent.html"><strong aria-hidden="true">3.</strong> Bittorrent</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../bittorrent/piece-length-selection.html"><strong aria-hidden="true">3.1.</strong> Piece Length Selection</a></li><li class="chapter-item expanded "><a href="../bittorrent/bep-support.html"><strong aria-hidden="true">3.2.</strong> BEP Support</a></li><li class="chapter-item expanded "><a href="../bittorrent/metainfo-utilities.html"><strong aria-hidden="true">3.3.</strong> Metainfo Utilities</a></li><li class="chapter-item expanded "><a href="../bittorrent/distributing-large-data-sets.html"><strong aria-hidden="true">3.4.</strong> Distributing Large Data Sets</a></li><li class="chapter-item expanded "><a href="../bittorrent/udp-tracker-protocol.html"><strong aria-hidden="true">3.5.</strong> UDP Tracker Protocol</a></li></ol></li><li class="chapter-item expanded "><a href="../references.html"><strong aria-hidden="true">4.</strong> References</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../references/bittorrent.html"><strong aria-hidden="true">4.1.</strong> BitTorrent</a></li><li class="chapter-item expanded "><a href="../references/metadata.html"><strong aria-hidden="true">4.2.</strong> Metadata</a></li><li class="chapter-item expanded "><a href="../references/cryptography.html"><strong aria-hidden="true">4.3.</strong> Cryptography</a></li></ol></li></ol>
             </div>
-            <div id="sidebar-resize-handle" class="sidebar-resize-handle"></div>
+            <div id="sidebar-resize-handle" class="sidebar-resize-handle">
+                <div class="sidebar-resize-indicator"></div>
+            </div>
         </nav>
 
         <!-- Track and set sidebar scroll position -->
@@ -117,9 +124,9 @@
                                 <div id="menu-bar-hover-placeholder"></div>
                 <div id="menu-bar" class="menu-bar sticky">
                     <div class="left-buttons">
-                        <button id="sidebar-toggle" class="icon-button" type="button" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
+                        <label id="sidebar-toggle" class="icon-button" for="sidebar-toggle-anchor" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
                             <i class="fa fa-bars"></i>
-                        </button>
+                        </label>
                         <button id="theme-toggle" class="icon-button" type="button" title="Change theme" aria-label="Change theme" aria-haspopup="true" aria-expanded="false" aria-controls="theme-list">
                             <i class="fa fa-paint-brush"></i>
                         </button>
@@ -199,7 +206,7 @@ <h1 id="imdl-torrent-announce"><a class="header" href="#imdl-torrent-announce"><
                                 <i class="fa fa-angle-left"></i>
                             </a>
 
-                            <a rel="next" href="../commands/imdl-torrent-create.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
+                            <a rel="next prefetch" href="../commands/imdl-torrent-create.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
                                 <i class="fa fa-angle-right"></i>
                             </a>
 
@@ -213,7 +220,7 @@ <h1 id="imdl-torrent-announce"><a class="header" href="#imdl-torrent-announce"><
                         <i class="fa fa-angle-left"></i>
                     </a>
 
-                    <a rel="next" href="../commands/imdl-torrent-create.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
+                    <a rel="next prefetch" href="../commands/imdl-torrent-create.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
                         <i class="fa fa-angle-right"></i>
                     </a>
             </nav>
diff --git a/book/commands/imdl-torrent-create.html b/book/commands/imdl-torrent-create.html
index 06b42919..a94c0e4d 100644
--- a/book/commands/imdl-torrent-create.html
+++ b/book/commands/imdl-torrent-create.html
@@ -1,5 +1,5 @@
 <!DOCTYPE HTML>
-<html lang="en" class="sidebar-visible no-js ayu">
+<html lang="en" class="ayu" dir="ltr">
     <head>
         <!-- Book generated using mdBook -->
         <meta charset="UTF-8">
@@ -10,7 +10,7 @@
         
         <meta name="description" content="">
         <meta name="viewport" content="width=device-width, initial-scale=1">
-        <meta name="theme-color" content="#ffffff" />
+        <meta name="theme-color" content="#ffffff">
 
         <link rel="icon" href="../favicon.svg">
         <link rel="shortcut icon" href="../favicon.png">
@@ -32,7 +32,7 @@
         <link rel="stylesheet" href="../custom.css">
 
     </head>
-    <body>
+    <body class="sidebar-visible no-js">
     <div id="body-container">
         <!-- Provide site root to javascript -->
         <script>
@@ -62,31 +62,38 @@
             try { theme = localStorage.getItem('mdbook-theme'); } catch(e) { }
             if (theme === null || theme === undefined) { theme = default_theme; }
             var html = document.querySelector('html');
-            html.classList.remove('no-js')
             html.classList.remove('ayu')
             html.classList.add(theme);
-            html.classList.add('js');
+            var body = document.querySelector('body');
+            body.classList.remove('no-js')
+            body.classList.add('js');
         </script>
 
+        <input type="checkbox" id="sidebar-toggle-anchor" class="hidden">
+
         <!-- Hide / unhide sidebar before it is displayed -->
         <script>
-            var html = document.querySelector('html');
+            var body = document.querySelector('body');
             var sidebar = null;
+            var sidebar_toggle = document.getElementById("sidebar-toggle-anchor");
             if (document.body.clientWidth >= 1080) {
                 try { sidebar = localStorage.getItem('mdbook-sidebar'); } catch(e) { }
                 sidebar = sidebar || 'visible';
             } else {
                 sidebar = 'hidden';
             }
-            html.classList.remove('sidebar-visible');
-            html.classList.add("sidebar-" + sidebar);
+            sidebar_toggle.checked = sidebar === 'visible';
+            body.classList.remove('sidebar-visible');
+            body.classList.add("sidebar-" + sidebar);
         </script>
 
         <nav id="sidebar" class="sidebar" aria-label="Table of contents">
             <div class="sidebar-scrollbox">
                 <ol class="chapter"><li class="chapter-item expanded affix "><a href="../introduction.html">Intermodal</a></li><li class="chapter-item expanded "><a href="../faq.html"><strong aria-hidden="true">1.</strong> FAQ</a></li><li class="chapter-item expanded "><a href="../commands.html"><strong aria-hidden="true">2.</strong> Commands</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../commands/imdl.html"><strong aria-hidden="true">2.1.</strong> imdl</a></li><li class="chapter-item expanded "><a href="../commands/imdl-completions.html"><strong aria-hidden="true">2.2.</strong> imdl completions</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent.html"><strong aria-hidden="true">2.3.</strong> imdl torrent</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-announce.html"><strong aria-hidden="true">2.4.</strong> imdl torrent announce</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-create.html" class="active"><strong aria-hidden="true">2.5.</strong> imdl torrent create</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-from-link.html"><strong aria-hidden="true">2.6.</strong> imdl torrent from-link</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-link.html"><strong aria-hidden="true">2.7.</strong> imdl torrent link</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-piece-length.html"><strong aria-hidden="true">2.8.</strong> imdl torrent piece-length</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-show.html"><strong aria-hidden="true">2.9.</strong> imdl torrent show</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-stats.html"><strong aria-hidden="true">2.10.</strong> imdl torrent stats</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-verify.html"><strong aria-hidden="true">2.11.</strong> imdl torrent verify</a></li></ol></li><li class="chapter-item expanded "><a href="../bittorrent.html"><strong aria-hidden="true">3.</strong> Bittorrent</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../bittorrent/piece-length-selection.html"><strong aria-hidden="true">3.1.</strong> Piece Length Selection</a></li><li class="chapter-item expanded "><a href="../bittorrent/bep-support.html"><strong aria-hidden="true">3.2.</strong> BEP Support</a></li><li class="chapter-item expanded "><a href="../bittorrent/metainfo-utilities.html"><strong aria-hidden="true">3.3.</strong> Metainfo Utilities</a></li><li class="chapter-item expanded "><a href="../bittorrent/distributing-large-data-sets.html"><strong aria-hidden="true">3.4.</strong> Distributing Large Data Sets</a></li><li class="chapter-item expanded "><a href="../bittorrent/udp-tracker-protocol.html"><strong aria-hidden="true">3.5.</strong> UDP Tracker Protocol</a></li></ol></li><li class="chapter-item expanded "><a href="../references.html"><strong aria-hidden="true">4.</strong> References</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../references/bittorrent.html"><strong aria-hidden="true">4.1.</strong> BitTorrent</a></li><li class="chapter-item expanded "><a href="../references/metadata.html"><strong aria-hidden="true">4.2.</strong> Metadata</a></li><li class="chapter-item expanded "><a href="../references/cryptography.html"><strong aria-hidden="true">4.3.</strong> Cryptography</a></li></ol></li></ol>
             </div>
-            <div id="sidebar-resize-handle" class="sidebar-resize-handle"></div>
+            <div id="sidebar-resize-handle" class="sidebar-resize-handle">
+                <div class="sidebar-resize-indicator"></div>
+            </div>
         </nav>
 
         <!-- Track and set sidebar scroll position -->
@@ -117,9 +124,9 @@
                                 <div id="menu-bar-hover-placeholder"></div>
                 <div id="menu-bar" class="menu-bar sticky">
                     <div class="left-buttons">
-                        <button id="sidebar-toggle" class="icon-button" type="button" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
+                        <label id="sidebar-toggle" class="icon-button" for="sidebar-toggle-anchor" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
                             <i class="fa fa-bars"></i>
-                        </button>
+                        </label>
                         <button id="theme-toggle" class="icon-button" type="button" title="Change theme" aria-label="Change theme" aria-haspopup="true" aria-expanded="false" aria-controls="theme-list">
                             <i class="fa fa-paint-brush"></i>
                         </button>
@@ -333,7 +340,7 @@ <h1 id="imdl-torrent-create"><a class="header" href="#imdl-torrent-create"><code
                                 <i class="fa fa-angle-left"></i>
                             </a>
 
-                            <a rel="next" href="../commands/imdl-torrent-from-link.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
+                            <a rel="next prefetch" href="../commands/imdl-torrent-from-link.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
                                 <i class="fa fa-angle-right"></i>
                             </a>
 
@@ -347,7 +354,7 @@ <h1 id="imdl-torrent-create"><a class="header" href="#imdl-torrent-create"><code
                         <i class="fa fa-angle-left"></i>
                     </a>
 
-                    <a rel="next" href="../commands/imdl-torrent-from-link.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
+                    <a rel="next prefetch" href="../commands/imdl-torrent-from-link.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
                         <i class="fa fa-angle-right"></i>
                     </a>
             </nav>
diff --git a/book/commands/imdl-torrent-from-link.html b/book/commands/imdl-torrent-from-link.html
index 234f50f9..16d91dbe 100644
--- a/book/commands/imdl-torrent-from-link.html
+++ b/book/commands/imdl-torrent-from-link.html
@@ -1,5 +1,5 @@
 <!DOCTYPE HTML>
-<html lang="en" class="sidebar-visible no-js ayu">
+<html lang="en" class="ayu" dir="ltr">
     <head>
         <!-- Book generated using mdBook -->
         <meta charset="UTF-8">
@@ -10,7 +10,7 @@
         
         <meta name="description" content="">
         <meta name="viewport" content="width=device-width, initial-scale=1">
-        <meta name="theme-color" content="#ffffff" />
+        <meta name="theme-color" content="#ffffff">
 
         <link rel="icon" href="../favicon.svg">
         <link rel="shortcut icon" href="../favicon.png">
@@ -32,7 +32,7 @@
         <link rel="stylesheet" href="../custom.css">
 
     </head>
-    <body>
+    <body class="sidebar-visible no-js">
     <div id="body-container">
         <!-- Provide site root to javascript -->
         <script>
@@ -62,31 +62,38 @@
             try { theme = localStorage.getItem('mdbook-theme'); } catch(e) { }
             if (theme === null || theme === undefined) { theme = default_theme; }
             var html = document.querySelector('html');
-            html.classList.remove('no-js')
             html.classList.remove('ayu')
             html.classList.add(theme);
-            html.classList.add('js');
+            var body = document.querySelector('body');
+            body.classList.remove('no-js')
+            body.classList.add('js');
         </script>
 
+        <input type="checkbox" id="sidebar-toggle-anchor" class="hidden">
+
         <!-- Hide / unhide sidebar before it is displayed -->
         <script>
-            var html = document.querySelector('html');
+            var body = document.querySelector('body');
             var sidebar = null;
+            var sidebar_toggle = document.getElementById("sidebar-toggle-anchor");
             if (document.body.clientWidth >= 1080) {
                 try { sidebar = localStorage.getItem('mdbook-sidebar'); } catch(e) { }
                 sidebar = sidebar || 'visible';
             } else {
                 sidebar = 'hidden';
             }
-            html.classList.remove('sidebar-visible');
-            html.classList.add("sidebar-" + sidebar);
+            sidebar_toggle.checked = sidebar === 'visible';
+            body.classList.remove('sidebar-visible');
+            body.classList.add("sidebar-" + sidebar);
         </script>
 
         <nav id="sidebar" class="sidebar" aria-label="Table of contents">
             <div class="sidebar-scrollbox">
                 <ol class="chapter"><li class="chapter-item expanded affix "><a href="../introduction.html">Intermodal</a></li><li class="chapter-item expanded "><a href="../faq.html"><strong aria-hidden="true">1.</strong> FAQ</a></li><li class="chapter-item expanded "><a href="../commands.html"><strong aria-hidden="true">2.</strong> Commands</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../commands/imdl.html"><strong aria-hidden="true">2.1.</strong> imdl</a></li><li class="chapter-item expanded "><a href="../commands/imdl-completions.html"><strong aria-hidden="true">2.2.</strong> imdl completions</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent.html"><strong aria-hidden="true">2.3.</strong> imdl torrent</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-announce.html"><strong aria-hidden="true">2.4.</strong> imdl torrent announce</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-create.html"><strong aria-hidden="true">2.5.</strong> imdl torrent create</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-from-link.html" class="active"><strong aria-hidden="true">2.6.</strong> imdl torrent from-link</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-link.html"><strong aria-hidden="true">2.7.</strong> imdl torrent link</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-piece-length.html"><strong aria-hidden="true">2.8.</strong> imdl torrent piece-length</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-show.html"><strong aria-hidden="true">2.9.</strong> imdl torrent show</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-stats.html"><strong aria-hidden="true">2.10.</strong> imdl torrent stats</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-verify.html"><strong aria-hidden="true">2.11.</strong> imdl torrent verify</a></li></ol></li><li class="chapter-item expanded "><a href="../bittorrent.html"><strong aria-hidden="true">3.</strong> Bittorrent</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../bittorrent/piece-length-selection.html"><strong aria-hidden="true">3.1.</strong> Piece Length Selection</a></li><li class="chapter-item expanded "><a href="../bittorrent/bep-support.html"><strong aria-hidden="true">3.2.</strong> BEP Support</a></li><li class="chapter-item expanded "><a href="../bittorrent/metainfo-utilities.html"><strong aria-hidden="true">3.3.</strong> Metainfo Utilities</a></li><li class="chapter-item expanded "><a href="../bittorrent/distributing-large-data-sets.html"><strong aria-hidden="true">3.4.</strong> Distributing Large Data Sets</a></li><li class="chapter-item expanded "><a href="../bittorrent/udp-tracker-protocol.html"><strong aria-hidden="true">3.5.</strong> UDP Tracker Protocol</a></li></ol></li><li class="chapter-item expanded "><a href="../references.html"><strong aria-hidden="true">4.</strong> References</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../references/bittorrent.html"><strong aria-hidden="true">4.1.</strong> BitTorrent</a></li><li class="chapter-item expanded "><a href="../references/metadata.html"><strong aria-hidden="true">4.2.</strong> Metadata</a></li><li class="chapter-item expanded "><a href="../references/cryptography.html"><strong aria-hidden="true">4.3.</strong> Cryptography</a></li></ol></li></ol>
             </div>
-            <div id="sidebar-resize-handle" class="sidebar-resize-handle"></div>
+            <div id="sidebar-resize-handle" class="sidebar-resize-handle">
+                <div class="sidebar-resize-indicator"></div>
+            </div>
         </nav>
 
         <!-- Track and set sidebar scroll position -->
@@ -117,9 +124,9 @@
                                 <div id="menu-bar-hover-placeholder"></div>
                 <div id="menu-bar" class="menu-bar sticky">
                     <div class="left-buttons">
-                        <button id="sidebar-toggle" class="icon-button" type="button" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
+                        <label id="sidebar-toggle" class="icon-button" for="sidebar-toggle-anchor" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
                             <i class="fa fa-bars"></i>
-                        </button>
+                        </label>
                         <button id="theme-toggle" class="icon-button" type="button" title="Change theme" aria-label="Change theme" aria-haspopup="true" aria-expanded="false" aria-controls="theme-list">
                             <i class="fa fa-paint-brush"></i>
                         </button>
@@ -199,7 +206,7 @@ <h1 id="imdl-torrent-from-link"><a class="header" href="#imdl-torrent-from-link"
                                 <i class="fa fa-angle-left"></i>
                             </a>
 
-                            <a rel="next" href="../commands/imdl-torrent-link.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
+                            <a rel="next prefetch" href="../commands/imdl-torrent-link.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
                                 <i class="fa fa-angle-right"></i>
                             </a>
 
@@ -213,7 +220,7 @@ <h1 id="imdl-torrent-from-link"><a class="header" href="#imdl-torrent-from-link"
                         <i class="fa fa-angle-left"></i>
                     </a>
 
-                    <a rel="next" href="../commands/imdl-torrent-link.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
+                    <a rel="next prefetch" href="../commands/imdl-torrent-link.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
                         <i class="fa fa-angle-right"></i>
                     </a>
             </nav>
diff --git a/book/commands/imdl-torrent-link.html b/book/commands/imdl-torrent-link.html
index 0a33827d..27541a6d 100644
--- a/book/commands/imdl-torrent-link.html
+++ b/book/commands/imdl-torrent-link.html
@@ -1,5 +1,5 @@
 <!DOCTYPE HTML>
-<html lang="en" class="sidebar-visible no-js ayu">
+<html lang="en" class="ayu" dir="ltr">
     <head>
         <!-- Book generated using mdBook -->
         <meta charset="UTF-8">
@@ -10,7 +10,7 @@
         
         <meta name="description" content="">
         <meta name="viewport" content="width=device-width, initial-scale=1">
-        <meta name="theme-color" content="#ffffff" />
+        <meta name="theme-color" content="#ffffff">
 
         <link rel="icon" href="../favicon.svg">
         <link rel="shortcut icon" href="../favicon.png">
@@ -32,7 +32,7 @@
         <link rel="stylesheet" href="../custom.css">
 
     </head>
-    <body>
+    <body class="sidebar-visible no-js">
     <div id="body-container">
         <!-- Provide site root to javascript -->
         <script>
@@ -62,31 +62,38 @@
             try { theme = localStorage.getItem('mdbook-theme'); } catch(e) { }
             if (theme === null || theme === undefined) { theme = default_theme; }
             var html = document.querySelector('html');
-            html.classList.remove('no-js')
             html.classList.remove('ayu')
             html.classList.add(theme);
-            html.classList.add('js');
+            var body = document.querySelector('body');
+            body.classList.remove('no-js')
+            body.classList.add('js');
         </script>
 
+        <input type="checkbox" id="sidebar-toggle-anchor" class="hidden">
+
         <!-- Hide / unhide sidebar before it is displayed -->
         <script>
-            var html = document.querySelector('html');
+            var body = document.querySelector('body');
             var sidebar = null;
+            var sidebar_toggle = document.getElementById("sidebar-toggle-anchor");
             if (document.body.clientWidth >= 1080) {
                 try { sidebar = localStorage.getItem('mdbook-sidebar'); } catch(e) { }
                 sidebar = sidebar || 'visible';
             } else {
                 sidebar = 'hidden';
             }
-            html.classList.remove('sidebar-visible');
-            html.classList.add("sidebar-" + sidebar);
+            sidebar_toggle.checked = sidebar === 'visible';
+            body.classList.remove('sidebar-visible');
+            body.classList.add("sidebar-" + sidebar);
         </script>
 
         <nav id="sidebar" class="sidebar" aria-label="Table of contents">
             <div class="sidebar-scrollbox">
                 <ol class="chapter"><li class="chapter-item expanded affix "><a href="../introduction.html">Intermodal</a></li><li class="chapter-item expanded "><a href="../faq.html"><strong aria-hidden="true">1.</strong> FAQ</a></li><li class="chapter-item expanded "><a href="../commands.html"><strong aria-hidden="true">2.</strong> Commands</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../commands/imdl.html"><strong aria-hidden="true">2.1.</strong> imdl</a></li><li class="chapter-item expanded "><a href="../commands/imdl-completions.html"><strong aria-hidden="true">2.2.</strong> imdl completions</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent.html"><strong aria-hidden="true">2.3.</strong> imdl torrent</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-announce.html"><strong aria-hidden="true">2.4.</strong> imdl torrent announce</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-create.html"><strong aria-hidden="true">2.5.</strong> imdl torrent create</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-from-link.html"><strong aria-hidden="true">2.6.</strong> imdl torrent from-link</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-link.html" class="active"><strong aria-hidden="true">2.7.</strong> imdl torrent link</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-piece-length.html"><strong aria-hidden="true">2.8.</strong> imdl torrent piece-length</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-show.html"><strong aria-hidden="true">2.9.</strong> imdl torrent show</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-stats.html"><strong aria-hidden="true">2.10.</strong> imdl torrent stats</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-verify.html"><strong aria-hidden="true">2.11.</strong> imdl torrent verify</a></li></ol></li><li class="chapter-item expanded "><a href="../bittorrent.html"><strong aria-hidden="true">3.</strong> Bittorrent</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../bittorrent/piece-length-selection.html"><strong aria-hidden="true">3.1.</strong> Piece Length Selection</a></li><li class="chapter-item expanded "><a href="../bittorrent/bep-support.html"><strong aria-hidden="true">3.2.</strong> BEP Support</a></li><li class="chapter-item expanded "><a href="../bittorrent/metainfo-utilities.html"><strong aria-hidden="true">3.3.</strong> Metainfo Utilities</a></li><li class="chapter-item expanded "><a href="../bittorrent/distributing-large-data-sets.html"><strong aria-hidden="true">3.4.</strong> Distributing Large Data Sets</a></li><li class="chapter-item expanded "><a href="../bittorrent/udp-tracker-protocol.html"><strong aria-hidden="true">3.5.</strong> UDP Tracker Protocol</a></li></ol></li><li class="chapter-item expanded "><a href="../references.html"><strong aria-hidden="true">4.</strong> References</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../references/bittorrent.html"><strong aria-hidden="true">4.1.</strong> BitTorrent</a></li><li class="chapter-item expanded "><a href="../references/metadata.html"><strong aria-hidden="true">4.2.</strong> Metadata</a></li><li class="chapter-item expanded "><a href="../references/cryptography.html"><strong aria-hidden="true">4.3.</strong> Cryptography</a></li></ol></li></ol>
             </div>
-            <div id="sidebar-resize-handle" class="sidebar-resize-handle"></div>
+            <div id="sidebar-resize-handle" class="sidebar-resize-handle">
+                <div class="sidebar-resize-indicator"></div>
+            </div>
         </nav>
 
         <!-- Track and set sidebar scroll position -->
@@ -117,9 +124,9 @@
                                 <div id="menu-bar-hover-placeholder"></div>
                 <div id="menu-bar" class="menu-bar sticky">
                     <div class="left-buttons">
-                        <button id="sidebar-toggle" class="icon-button" type="button" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
+                        <label id="sidebar-toggle" class="icon-button" for="sidebar-toggle-anchor" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
                             <i class="fa fa-bars"></i>
-                        </button>
+                        </label>
                         <button id="theme-toggle" class="icon-button" type="button" title="Change theme" aria-label="Change theme" aria-haspopup="true" aria-expanded="false" aria-controls="theme-list">
                             <i class="fa fa-paint-brush"></i>
                         </button>
@@ -207,7 +214,7 @@ <h1 id="imdl-torrent-link"><a class="header" href="#imdl-torrent-link"><code>imd
                                 <i class="fa fa-angle-left"></i>
                             </a>
 
-                            <a rel="next" href="../commands/imdl-torrent-piece-length.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
+                            <a rel="next prefetch" href="../commands/imdl-torrent-piece-length.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
                                 <i class="fa fa-angle-right"></i>
                             </a>
 
@@ -221,7 +228,7 @@ <h1 id="imdl-torrent-link"><a class="header" href="#imdl-torrent-link"><code>imd
                         <i class="fa fa-angle-left"></i>
                     </a>
 
-                    <a rel="next" href="../commands/imdl-torrent-piece-length.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
+                    <a rel="next prefetch" href="../commands/imdl-torrent-piece-length.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
                         <i class="fa fa-angle-right"></i>
                     </a>
             </nav>
diff --git a/book/commands/imdl-torrent-piece-length.html b/book/commands/imdl-torrent-piece-length.html
index c8a18409..6079b0e4 100644
--- a/book/commands/imdl-torrent-piece-length.html
+++ b/book/commands/imdl-torrent-piece-length.html
@@ -1,5 +1,5 @@
 <!DOCTYPE HTML>
-<html lang="en" class="sidebar-visible no-js ayu">
+<html lang="en" class="ayu" dir="ltr">
     <head>
         <!-- Book generated using mdBook -->
         <meta charset="UTF-8">
@@ -10,7 +10,7 @@
         
         <meta name="description" content="">
         <meta name="viewport" content="width=device-width, initial-scale=1">
-        <meta name="theme-color" content="#ffffff" />
+        <meta name="theme-color" content="#ffffff">
 
         <link rel="icon" href="../favicon.svg">
         <link rel="shortcut icon" href="../favicon.png">
@@ -32,7 +32,7 @@
         <link rel="stylesheet" href="../custom.css">
 
     </head>
-    <body>
+    <body class="sidebar-visible no-js">
     <div id="body-container">
         <!-- Provide site root to javascript -->
         <script>
@@ -62,31 +62,38 @@
             try { theme = localStorage.getItem('mdbook-theme'); } catch(e) { }
             if (theme === null || theme === undefined) { theme = default_theme; }
             var html = document.querySelector('html');
-            html.classList.remove('no-js')
             html.classList.remove('ayu')
             html.classList.add(theme);
-            html.classList.add('js');
+            var body = document.querySelector('body');
+            body.classList.remove('no-js')
+            body.classList.add('js');
         </script>
 
+        <input type="checkbox" id="sidebar-toggle-anchor" class="hidden">
+
         <!-- Hide / unhide sidebar before it is displayed -->
         <script>
-            var html = document.querySelector('html');
+            var body = document.querySelector('body');
             var sidebar = null;
+            var sidebar_toggle = document.getElementById("sidebar-toggle-anchor");
             if (document.body.clientWidth >= 1080) {
                 try { sidebar = localStorage.getItem('mdbook-sidebar'); } catch(e) { }
                 sidebar = sidebar || 'visible';
             } else {
                 sidebar = 'hidden';
             }
-            html.classList.remove('sidebar-visible');
-            html.classList.add("sidebar-" + sidebar);
+            sidebar_toggle.checked = sidebar === 'visible';
+            body.classList.remove('sidebar-visible');
+            body.classList.add("sidebar-" + sidebar);
         </script>
 
         <nav id="sidebar" class="sidebar" aria-label="Table of contents">
             <div class="sidebar-scrollbox">
                 <ol class="chapter"><li class="chapter-item expanded affix "><a href="../introduction.html">Intermodal</a></li><li class="chapter-item expanded "><a href="../faq.html"><strong aria-hidden="true">1.</strong> FAQ</a></li><li class="chapter-item expanded "><a href="../commands.html"><strong aria-hidden="true">2.</strong> Commands</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../commands/imdl.html"><strong aria-hidden="true">2.1.</strong> imdl</a></li><li class="chapter-item expanded "><a href="../commands/imdl-completions.html"><strong aria-hidden="true">2.2.</strong> imdl completions</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent.html"><strong aria-hidden="true">2.3.</strong> imdl torrent</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-announce.html"><strong aria-hidden="true">2.4.</strong> imdl torrent announce</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-create.html"><strong aria-hidden="true">2.5.</strong> imdl torrent create</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-from-link.html"><strong aria-hidden="true">2.6.</strong> imdl torrent from-link</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-link.html"><strong aria-hidden="true">2.7.</strong> imdl torrent link</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-piece-length.html" class="active"><strong aria-hidden="true">2.8.</strong> imdl torrent piece-length</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-show.html"><strong aria-hidden="true">2.9.</strong> imdl torrent show</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-stats.html"><strong aria-hidden="true">2.10.</strong> imdl torrent stats</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-verify.html"><strong aria-hidden="true">2.11.</strong> imdl torrent verify</a></li></ol></li><li class="chapter-item expanded "><a href="../bittorrent.html"><strong aria-hidden="true">3.</strong> Bittorrent</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../bittorrent/piece-length-selection.html"><strong aria-hidden="true">3.1.</strong> Piece Length Selection</a></li><li class="chapter-item expanded "><a href="../bittorrent/bep-support.html"><strong aria-hidden="true">3.2.</strong> BEP Support</a></li><li class="chapter-item expanded "><a href="../bittorrent/metainfo-utilities.html"><strong aria-hidden="true">3.3.</strong> Metainfo Utilities</a></li><li class="chapter-item expanded "><a href="../bittorrent/distributing-large-data-sets.html"><strong aria-hidden="true">3.4.</strong> Distributing Large Data Sets</a></li><li class="chapter-item expanded "><a href="../bittorrent/udp-tracker-protocol.html"><strong aria-hidden="true">3.5.</strong> UDP Tracker Protocol</a></li></ol></li><li class="chapter-item expanded "><a href="../references.html"><strong aria-hidden="true">4.</strong> References</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../references/bittorrent.html"><strong aria-hidden="true">4.1.</strong> BitTorrent</a></li><li class="chapter-item expanded "><a href="../references/metadata.html"><strong aria-hidden="true">4.2.</strong> Metadata</a></li><li class="chapter-item expanded "><a href="../references/cryptography.html"><strong aria-hidden="true">4.3.</strong> Cryptography</a></li></ol></li></ol>
             </div>
-            <div id="sidebar-resize-handle" class="sidebar-resize-handle"></div>
+            <div id="sidebar-resize-handle" class="sidebar-resize-handle">
+                <div class="sidebar-resize-indicator"></div>
+            </div>
         </nav>
 
         <!-- Track and set sidebar scroll position -->
@@ -117,9 +124,9 @@
                                 <div id="menu-bar-hover-placeholder"></div>
                 <div id="menu-bar" class="menu-bar sticky">
                     <div class="left-buttons">
-                        <button id="sidebar-toggle" class="icon-button" type="button" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
+                        <label id="sidebar-toggle" class="icon-button" for="sidebar-toggle-anchor" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
                             <i class="fa fa-bars"></i>
-                        </button>
+                        </label>
                         <button id="theme-toggle" class="icon-button" type="button" title="Change theme" aria-label="Change theme" aria-haspopup="true" aria-expanded="false" aria-controls="theme-list">
                             <i class="fa fa-paint-brush"></i>
                         </button>
@@ -191,7 +198,7 @@ <h1 id="imdl-torrent-piece-length"><a class="header" href="#imdl-torrent-piece-l
                                 <i class="fa fa-angle-left"></i>
                             </a>
 
-                            <a rel="next" href="../commands/imdl-torrent-show.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
+                            <a rel="next prefetch" href="../commands/imdl-torrent-show.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
                                 <i class="fa fa-angle-right"></i>
                             </a>
 
@@ -205,7 +212,7 @@ <h1 id="imdl-torrent-piece-length"><a class="header" href="#imdl-torrent-piece-l
                         <i class="fa fa-angle-left"></i>
                     </a>
 
-                    <a rel="next" href="../commands/imdl-torrent-show.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
+                    <a rel="next prefetch" href="../commands/imdl-torrent-show.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
                         <i class="fa fa-angle-right"></i>
                     </a>
             </nav>
diff --git a/book/commands/imdl-torrent-show.html b/book/commands/imdl-torrent-show.html
index edb4ce2e..b165913d 100644
--- a/book/commands/imdl-torrent-show.html
+++ b/book/commands/imdl-torrent-show.html
@@ -1,5 +1,5 @@
 <!DOCTYPE HTML>
-<html lang="en" class="sidebar-visible no-js ayu">
+<html lang="en" class="ayu" dir="ltr">
     <head>
         <!-- Book generated using mdBook -->
         <meta charset="UTF-8">
@@ -10,7 +10,7 @@
         
         <meta name="description" content="">
         <meta name="viewport" content="width=device-width, initial-scale=1">
-        <meta name="theme-color" content="#ffffff" />
+        <meta name="theme-color" content="#ffffff">
 
         <link rel="icon" href="../favicon.svg">
         <link rel="shortcut icon" href="../favicon.png">
@@ -32,7 +32,7 @@
         <link rel="stylesheet" href="../custom.css">
 
     </head>
-    <body>
+    <body class="sidebar-visible no-js">
     <div id="body-container">
         <!-- Provide site root to javascript -->
         <script>
@@ -62,31 +62,38 @@
             try { theme = localStorage.getItem('mdbook-theme'); } catch(e) { }
             if (theme === null || theme === undefined) { theme = default_theme; }
             var html = document.querySelector('html');
-            html.classList.remove('no-js')
             html.classList.remove('ayu')
             html.classList.add(theme);
-            html.classList.add('js');
+            var body = document.querySelector('body');
+            body.classList.remove('no-js')
+            body.classList.add('js');
         </script>
 
+        <input type="checkbox" id="sidebar-toggle-anchor" class="hidden">
+
         <!-- Hide / unhide sidebar before it is displayed -->
         <script>
-            var html = document.querySelector('html');
+            var body = document.querySelector('body');
             var sidebar = null;
+            var sidebar_toggle = document.getElementById("sidebar-toggle-anchor");
             if (document.body.clientWidth >= 1080) {
                 try { sidebar = localStorage.getItem('mdbook-sidebar'); } catch(e) { }
                 sidebar = sidebar || 'visible';
             } else {
                 sidebar = 'hidden';
             }
-            html.classList.remove('sidebar-visible');
-            html.classList.add("sidebar-" + sidebar);
+            sidebar_toggle.checked = sidebar === 'visible';
+            body.classList.remove('sidebar-visible');
+            body.classList.add("sidebar-" + sidebar);
         </script>
 
         <nav id="sidebar" class="sidebar" aria-label="Table of contents">
             <div class="sidebar-scrollbox">
                 <ol class="chapter"><li class="chapter-item expanded affix "><a href="../introduction.html">Intermodal</a></li><li class="chapter-item expanded "><a href="../faq.html"><strong aria-hidden="true">1.</strong> FAQ</a></li><li class="chapter-item expanded "><a href="../commands.html"><strong aria-hidden="true">2.</strong> Commands</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../commands/imdl.html"><strong aria-hidden="true">2.1.</strong> imdl</a></li><li class="chapter-item expanded "><a href="../commands/imdl-completions.html"><strong aria-hidden="true">2.2.</strong> imdl completions</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent.html"><strong aria-hidden="true">2.3.</strong> imdl torrent</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-announce.html"><strong aria-hidden="true">2.4.</strong> imdl torrent announce</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-create.html"><strong aria-hidden="true">2.5.</strong> imdl torrent create</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-from-link.html"><strong aria-hidden="true">2.6.</strong> imdl torrent from-link</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-link.html"><strong aria-hidden="true">2.7.</strong> imdl torrent link</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-piece-length.html"><strong aria-hidden="true">2.8.</strong> imdl torrent piece-length</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-show.html" class="active"><strong aria-hidden="true">2.9.</strong> imdl torrent show</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-stats.html"><strong aria-hidden="true">2.10.</strong> imdl torrent stats</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-verify.html"><strong aria-hidden="true">2.11.</strong> imdl torrent verify</a></li></ol></li><li class="chapter-item expanded "><a href="../bittorrent.html"><strong aria-hidden="true">3.</strong> Bittorrent</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../bittorrent/piece-length-selection.html"><strong aria-hidden="true">3.1.</strong> Piece Length Selection</a></li><li class="chapter-item expanded "><a href="../bittorrent/bep-support.html"><strong aria-hidden="true">3.2.</strong> BEP Support</a></li><li class="chapter-item expanded "><a href="../bittorrent/metainfo-utilities.html"><strong aria-hidden="true">3.3.</strong> Metainfo Utilities</a></li><li class="chapter-item expanded "><a href="../bittorrent/distributing-large-data-sets.html"><strong aria-hidden="true">3.4.</strong> Distributing Large Data Sets</a></li><li class="chapter-item expanded "><a href="../bittorrent/udp-tracker-protocol.html"><strong aria-hidden="true">3.5.</strong> UDP Tracker Protocol</a></li></ol></li><li class="chapter-item expanded "><a href="../references.html"><strong aria-hidden="true">4.</strong> References</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../references/bittorrent.html"><strong aria-hidden="true">4.1.</strong> BitTorrent</a></li><li class="chapter-item expanded "><a href="../references/metadata.html"><strong aria-hidden="true">4.2.</strong> Metadata</a></li><li class="chapter-item expanded "><a href="../references/cryptography.html"><strong aria-hidden="true">4.3.</strong> Cryptography</a></li></ol></li></ol>
             </div>
-            <div id="sidebar-resize-handle" class="sidebar-resize-handle"></div>
+            <div id="sidebar-resize-handle" class="sidebar-resize-handle">
+                <div class="sidebar-resize-indicator"></div>
+            </div>
         </nav>
 
         <!-- Track and set sidebar scroll position -->
@@ -117,9 +124,9 @@
                                 <div id="menu-bar-hover-placeholder"></div>
                 <div id="menu-bar" class="menu-bar sticky">
                     <div class="left-buttons">
-                        <button id="sidebar-toggle" class="icon-button" type="button" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
+                        <label id="sidebar-toggle" class="icon-button" for="sidebar-toggle-anchor" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
                             <i class="fa fa-bars"></i>
-                        </button>
+                        </label>
                         <button id="theme-toggle" class="icon-button" type="button" title="Change theme" aria-label="Change theme" aria-haspopup="true" aria-expanded="false" aria-controls="theme-list">
                             <i class="fa fa-paint-brush"></i>
                         </button>
@@ -200,7 +207,7 @@ <h1 id="imdl-torrent-show"><a class="header" href="#imdl-torrent-show"><code>imd
                                 <i class="fa fa-angle-left"></i>
                             </a>
 
-                            <a rel="next" href="../commands/imdl-torrent-stats.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
+                            <a rel="next prefetch" href="../commands/imdl-torrent-stats.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
                                 <i class="fa fa-angle-right"></i>
                             </a>
 
@@ -214,7 +221,7 @@ <h1 id="imdl-torrent-show"><a class="header" href="#imdl-torrent-show"><code>imd
                         <i class="fa fa-angle-left"></i>
                     </a>
 
-                    <a rel="next" href="../commands/imdl-torrent-stats.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
+                    <a rel="next prefetch" href="../commands/imdl-torrent-stats.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
                         <i class="fa fa-angle-right"></i>
                     </a>
             </nav>
diff --git a/book/commands/imdl-torrent-stats.html b/book/commands/imdl-torrent-stats.html
index d6b4355e..1ac60802 100644
--- a/book/commands/imdl-torrent-stats.html
+++ b/book/commands/imdl-torrent-stats.html
@@ -1,5 +1,5 @@
 <!DOCTYPE HTML>
-<html lang="en" class="sidebar-visible no-js ayu">
+<html lang="en" class="ayu" dir="ltr">
     <head>
         <!-- Book generated using mdBook -->
         <meta charset="UTF-8">
@@ -10,7 +10,7 @@
         
         <meta name="description" content="">
         <meta name="viewport" content="width=device-width, initial-scale=1">
-        <meta name="theme-color" content="#ffffff" />
+        <meta name="theme-color" content="#ffffff">
 
         <link rel="icon" href="../favicon.svg">
         <link rel="shortcut icon" href="../favicon.png">
@@ -32,7 +32,7 @@
         <link rel="stylesheet" href="../custom.css">
 
     </head>
-    <body>
+    <body class="sidebar-visible no-js">
     <div id="body-container">
         <!-- Provide site root to javascript -->
         <script>
@@ -62,31 +62,38 @@
             try { theme = localStorage.getItem('mdbook-theme'); } catch(e) { }
             if (theme === null || theme === undefined) { theme = default_theme; }
             var html = document.querySelector('html');
-            html.classList.remove('no-js')
             html.classList.remove('ayu')
             html.classList.add(theme);
-            html.classList.add('js');
+            var body = document.querySelector('body');
+            body.classList.remove('no-js')
+            body.classList.add('js');
         </script>
 
+        <input type="checkbox" id="sidebar-toggle-anchor" class="hidden">
+
         <!-- Hide / unhide sidebar before it is displayed -->
         <script>
-            var html = document.querySelector('html');
+            var body = document.querySelector('body');
             var sidebar = null;
+            var sidebar_toggle = document.getElementById("sidebar-toggle-anchor");
             if (document.body.clientWidth >= 1080) {
                 try { sidebar = localStorage.getItem('mdbook-sidebar'); } catch(e) { }
                 sidebar = sidebar || 'visible';
             } else {
                 sidebar = 'hidden';
             }
-            html.classList.remove('sidebar-visible');
-            html.classList.add("sidebar-" + sidebar);
+            sidebar_toggle.checked = sidebar === 'visible';
+            body.classList.remove('sidebar-visible');
+            body.classList.add("sidebar-" + sidebar);
         </script>
 
         <nav id="sidebar" class="sidebar" aria-label="Table of contents">
             <div class="sidebar-scrollbox">
                 <ol class="chapter"><li class="chapter-item expanded affix "><a href="../introduction.html">Intermodal</a></li><li class="chapter-item expanded "><a href="../faq.html"><strong aria-hidden="true">1.</strong> FAQ</a></li><li class="chapter-item expanded "><a href="../commands.html"><strong aria-hidden="true">2.</strong> Commands</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../commands/imdl.html"><strong aria-hidden="true">2.1.</strong> imdl</a></li><li class="chapter-item expanded "><a href="../commands/imdl-completions.html"><strong aria-hidden="true">2.2.</strong> imdl completions</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent.html"><strong aria-hidden="true">2.3.</strong> imdl torrent</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-announce.html"><strong aria-hidden="true">2.4.</strong> imdl torrent announce</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-create.html"><strong aria-hidden="true">2.5.</strong> imdl torrent create</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-from-link.html"><strong aria-hidden="true">2.6.</strong> imdl torrent from-link</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-link.html"><strong aria-hidden="true">2.7.</strong> imdl torrent link</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-piece-length.html"><strong aria-hidden="true">2.8.</strong> imdl torrent piece-length</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-show.html"><strong aria-hidden="true">2.9.</strong> imdl torrent show</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-stats.html" class="active"><strong aria-hidden="true">2.10.</strong> imdl torrent stats</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-verify.html"><strong aria-hidden="true">2.11.</strong> imdl torrent verify</a></li></ol></li><li class="chapter-item expanded "><a href="../bittorrent.html"><strong aria-hidden="true">3.</strong> Bittorrent</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../bittorrent/piece-length-selection.html"><strong aria-hidden="true">3.1.</strong> Piece Length Selection</a></li><li class="chapter-item expanded "><a href="../bittorrent/bep-support.html"><strong aria-hidden="true">3.2.</strong> BEP Support</a></li><li class="chapter-item expanded "><a href="../bittorrent/metainfo-utilities.html"><strong aria-hidden="true">3.3.</strong> Metainfo Utilities</a></li><li class="chapter-item expanded "><a href="../bittorrent/distributing-large-data-sets.html"><strong aria-hidden="true">3.4.</strong> Distributing Large Data Sets</a></li><li class="chapter-item expanded "><a href="../bittorrent/udp-tracker-protocol.html"><strong aria-hidden="true">3.5.</strong> UDP Tracker Protocol</a></li></ol></li><li class="chapter-item expanded "><a href="../references.html"><strong aria-hidden="true">4.</strong> References</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../references/bittorrent.html"><strong aria-hidden="true">4.1.</strong> BitTorrent</a></li><li class="chapter-item expanded "><a href="../references/metadata.html"><strong aria-hidden="true">4.2.</strong> Metadata</a></li><li class="chapter-item expanded "><a href="../references/cryptography.html"><strong aria-hidden="true">4.3.</strong> Cryptography</a></li></ol></li></ol>
             </div>
-            <div id="sidebar-resize-handle" class="sidebar-resize-handle"></div>
+            <div id="sidebar-resize-handle" class="sidebar-resize-handle">
+                <div class="sidebar-resize-indicator"></div>
+            </div>
         </nav>
 
         <!-- Track and set sidebar scroll position -->
@@ -117,9 +124,9 @@
                                 <div id="menu-bar-hover-placeholder"></div>
                 <div id="menu-bar" class="menu-bar sticky">
                     <div class="left-buttons">
-                        <button id="sidebar-toggle" class="icon-button" type="button" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
+                        <label id="sidebar-toggle" class="icon-button" for="sidebar-toggle-anchor" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
                             <i class="fa fa-bars"></i>
-                        </button>
+                        </label>
                         <button id="theme-toggle" class="icon-button" type="button" title="Change theme" aria-label="Change theme" aria-haspopup="true" aria-expanded="false" aria-controls="theme-list">
                             <i class="fa fa-paint-brush"></i>
                         </button>
@@ -209,7 +216,7 @@ <h1 id="imdl-torrent-stats"><a class="header" href="#imdl-torrent-stats"><code>i
                                 <i class="fa fa-angle-left"></i>
                             </a>
 
-                            <a rel="next" href="../commands/imdl-torrent-verify.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
+                            <a rel="next prefetch" href="../commands/imdl-torrent-verify.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
                                 <i class="fa fa-angle-right"></i>
                             </a>
 
@@ -223,7 +230,7 @@ <h1 id="imdl-torrent-stats"><a class="header" href="#imdl-torrent-stats"><code>i
                         <i class="fa fa-angle-left"></i>
                     </a>
 
-                    <a rel="next" href="../commands/imdl-torrent-verify.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
+                    <a rel="next prefetch" href="../commands/imdl-torrent-verify.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
                         <i class="fa fa-angle-right"></i>
                     </a>
             </nav>
diff --git a/book/commands/imdl-torrent-verify.html b/book/commands/imdl-torrent-verify.html
index 13811521..dda37e58 100644
--- a/book/commands/imdl-torrent-verify.html
+++ b/book/commands/imdl-torrent-verify.html
@@ -1,5 +1,5 @@
 <!DOCTYPE HTML>
-<html lang="en" class="sidebar-visible no-js ayu">
+<html lang="en" class="ayu" dir="ltr">
     <head>
         <!-- Book generated using mdBook -->
         <meta charset="UTF-8">
@@ -10,7 +10,7 @@
         
         <meta name="description" content="">
         <meta name="viewport" content="width=device-width, initial-scale=1">
-        <meta name="theme-color" content="#ffffff" />
+        <meta name="theme-color" content="#ffffff">
 
         <link rel="icon" href="../favicon.svg">
         <link rel="shortcut icon" href="../favicon.png">
@@ -32,7 +32,7 @@
         <link rel="stylesheet" href="../custom.css">
 
     </head>
-    <body>
+    <body class="sidebar-visible no-js">
     <div id="body-container">
         <!-- Provide site root to javascript -->
         <script>
@@ -62,31 +62,38 @@
             try { theme = localStorage.getItem('mdbook-theme'); } catch(e) { }
             if (theme === null || theme === undefined) { theme = default_theme; }
             var html = document.querySelector('html');
-            html.classList.remove('no-js')
             html.classList.remove('ayu')
             html.classList.add(theme);
-            html.classList.add('js');
+            var body = document.querySelector('body');
+            body.classList.remove('no-js')
+            body.classList.add('js');
         </script>
 
+        <input type="checkbox" id="sidebar-toggle-anchor" class="hidden">
+
         <!-- Hide / unhide sidebar before it is displayed -->
         <script>
-            var html = document.querySelector('html');
+            var body = document.querySelector('body');
             var sidebar = null;
+            var sidebar_toggle = document.getElementById("sidebar-toggle-anchor");
             if (document.body.clientWidth >= 1080) {
                 try { sidebar = localStorage.getItem('mdbook-sidebar'); } catch(e) { }
                 sidebar = sidebar || 'visible';
             } else {
                 sidebar = 'hidden';
             }
-            html.classList.remove('sidebar-visible');
-            html.classList.add("sidebar-" + sidebar);
+            sidebar_toggle.checked = sidebar === 'visible';
+            body.classList.remove('sidebar-visible');
+            body.classList.add("sidebar-" + sidebar);
         </script>
 
         <nav id="sidebar" class="sidebar" aria-label="Table of contents">
             <div class="sidebar-scrollbox">
                 <ol class="chapter"><li class="chapter-item expanded affix "><a href="../introduction.html">Intermodal</a></li><li class="chapter-item expanded "><a href="../faq.html"><strong aria-hidden="true">1.</strong> FAQ</a></li><li class="chapter-item expanded "><a href="../commands.html"><strong aria-hidden="true">2.</strong> Commands</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../commands/imdl.html"><strong aria-hidden="true">2.1.</strong> imdl</a></li><li class="chapter-item expanded "><a href="../commands/imdl-completions.html"><strong aria-hidden="true">2.2.</strong> imdl completions</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent.html"><strong aria-hidden="true">2.3.</strong> imdl torrent</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-announce.html"><strong aria-hidden="true">2.4.</strong> imdl torrent announce</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-create.html"><strong aria-hidden="true">2.5.</strong> imdl torrent create</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-from-link.html"><strong aria-hidden="true">2.6.</strong> imdl torrent from-link</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-link.html"><strong aria-hidden="true">2.7.</strong> imdl torrent link</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-piece-length.html"><strong aria-hidden="true">2.8.</strong> imdl torrent piece-length</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-show.html"><strong aria-hidden="true">2.9.</strong> imdl torrent show</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-stats.html"><strong aria-hidden="true">2.10.</strong> imdl torrent stats</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-verify.html" class="active"><strong aria-hidden="true">2.11.</strong> imdl torrent verify</a></li></ol></li><li class="chapter-item expanded "><a href="../bittorrent.html"><strong aria-hidden="true">3.</strong> Bittorrent</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../bittorrent/piece-length-selection.html"><strong aria-hidden="true">3.1.</strong> Piece Length Selection</a></li><li class="chapter-item expanded "><a href="../bittorrent/bep-support.html"><strong aria-hidden="true">3.2.</strong> BEP Support</a></li><li class="chapter-item expanded "><a href="../bittorrent/metainfo-utilities.html"><strong aria-hidden="true">3.3.</strong> Metainfo Utilities</a></li><li class="chapter-item expanded "><a href="../bittorrent/distributing-large-data-sets.html"><strong aria-hidden="true">3.4.</strong> Distributing Large Data Sets</a></li><li class="chapter-item expanded "><a href="../bittorrent/udp-tracker-protocol.html"><strong aria-hidden="true">3.5.</strong> UDP Tracker Protocol</a></li></ol></li><li class="chapter-item expanded "><a href="../references.html"><strong aria-hidden="true">4.</strong> References</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../references/bittorrent.html"><strong aria-hidden="true">4.1.</strong> BitTorrent</a></li><li class="chapter-item expanded "><a href="../references/metadata.html"><strong aria-hidden="true">4.2.</strong> Metadata</a></li><li class="chapter-item expanded "><a href="../references/cryptography.html"><strong aria-hidden="true">4.3.</strong> Cryptography</a></li></ol></li></ol>
             </div>
-            <div id="sidebar-resize-handle" class="sidebar-resize-handle"></div>
+            <div id="sidebar-resize-handle" class="sidebar-resize-handle">
+                <div class="sidebar-resize-indicator"></div>
+            </div>
         </nav>
 
         <!-- Track and set sidebar scroll position -->
@@ -117,9 +124,9 @@
                                 <div id="menu-bar-hover-placeholder"></div>
                 <div id="menu-bar" class="menu-bar sticky">
                     <div class="left-buttons">
-                        <button id="sidebar-toggle" class="icon-button" type="button" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
+                        <label id="sidebar-toggle" class="icon-button" for="sidebar-toggle-anchor" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
                             <i class="fa fa-bars"></i>
-                        </button>
+                        </label>
                         <button id="theme-toggle" class="icon-button" type="button" title="Change theme" aria-label="Change theme" aria-haspopup="true" aria-expanded="false" aria-controls="theme-list">
                             <i class="fa fa-paint-brush"></i>
                         </button>
@@ -206,7 +213,7 @@ <h1 id="imdl-torrent-verify"><a class="header" href="#imdl-torrent-verify"><code
                                 <i class="fa fa-angle-left"></i>
                             </a>
 
-                            <a rel="next" href="../bittorrent.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
+                            <a rel="next prefetch" href="../bittorrent.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
                                 <i class="fa fa-angle-right"></i>
                             </a>
 
@@ -220,7 +227,7 @@ <h1 id="imdl-torrent-verify"><a class="header" href="#imdl-torrent-verify"><code
                         <i class="fa fa-angle-left"></i>
                     </a>
 
-                    <a rel="next" href="../bittorrent.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
+                    <a rel="next prefetch" href="../bittorrent.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
                         <i class="fa fa-angle-right"></i>
                     </a>
             </nav>
diff --git a/book/commands/imdl-torrent.html b/book/commands/imdl-torrent.html
index 1363f351..df4cb10b 100644
--- a/book/commands/imdl-torrent.html
+++ b/book/commands/imdl-torrent.html
@@ -1,5 +1,5 @@
 <!DOCTYPE HTML>
-<html lang="en" class="sidebar-visible no-js ayu">
+<html lang="en" class="ayu" dir="ltr">
     <head>
         <!-- Book generated using mdBook -->
         <meta charset="UTF-8">
@@ -10,7 +10,7 @@
         
         <meta name="description" content="">
         <meta name="viewport" content="width=device-width, initial-scale=1">
-        <meta name="theme-color" content="#ffffff" />
+        <meta name="theme-color" content="#ffffff">
 
         <link rel="icon" href="../favicon.svg">
         <link rel="shortcut icon" href="../favicon.png">
@@ -32,7 +32,7 @@
         <link rel="stylesheet" href="../custom.css">
 
     </head>
-    <body>
+    <body class="sidebar-visible no-js">
     <div id="body-container">
         <!-- Provide site root to javascript -->
         <script>
@@ -62,31 +62,38 @@
             try { theme = localStorage.getItem('mdbook-theme'); } catch(e) { }
             if (theme === null || theme === undefined) { theme = default_theme; }
             var html = document.querySelector('html');
-            html.classList.remove('no-js')
             html.classList.remove('ayu')
             html.classList.add(theme);
-            html.classList.add('js');
+            var body = document.querySelector('body');
+            body.classList.remove('no-js')
+            body.classList.add('js');
         </script>
 
+        <input type="checkbox" id="sidebar-toggle-anchor" class="hidden">
+
         <!-- Hide / unhide sidebar before it is displayed -->
         <script>
-            var html = document.querySelector('html');
+            var body = document.querySelector('body');
             var sidebar = null;
+            var sidebar_toggle = document.getElementById("sidebar-toggle-anchor");
             if (document.body.clientWidth >= 1080) {
                 try { sidebar = localStorage.getItem('mdbook-sidebar'); } catch(e) { }
                 sidebar = sidebar || 'visible';
             } else {
                 sidebar = 'hidden';
             }
-            html.classList.remove('sidebar-visible');
-            html.classList.add("sidebar-" + sidebar);
+            sidebar_toggle.checked = sidebar === 'visible';
+            body.classList.remove('sidebar-visible');
+            body.classList.add("sidebar-" + sidebar);
         </script>
 
         <nav id="sidebar" class="sidebar" aria-label="Table of contents">
             <div class="sidebar-scrollbox">
                 <ol class="chapter"><li class="chapter-item expanded affix "><a href="../introduction.html">Intermodal</a></li><li class="chapter-item expanded "><a href="../faq.html"><strong aria-hidden="true">1.</strong> FAQ</a></li><li class="chapter-item expanded "><a href="../commands.html"><strong aria-hidden="true">2.</strong> Commands</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../commands/imdl.html"><strong aria-hidden="true">2.1.</strong> imdl</a></li><li class="chapter-item expanded "><a href="../commands/imdl-completions.html"><strong aria-hidden="true">2.2.</strong> imdl completions</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent.html" class="active"><strong aria-hidden="true">2.3.</strong> imdl torrent</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-announce.html"><strong aria-hidden="true">2.4.</strong> imdl torrent announce</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-create.html"><strong aria-hidden="true">2.5.</strong> imdl torrent create</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-from-link.html"><strong aria-hidden="true">2.6.</strong> imdl torrent from-link</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-link.html"><strong aria-hidden="true">2.7.</strong> imdl torrent link</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-piece-length.html"><strong aria-hidden="true">2.8.</strong> imdl torrent piece-length</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-show.html"><strong aria-hidden="true">2.9.</strong> imdl torrent show</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-stats.html"><strong aria-hidden="true">2.10.</strong> imdl torrent stats</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-verify.html"><strong aria-hidden="true">2.11.</strong> imdl torrent verify</a></li></ol></li><li class="chapter-item expanded "><a href="../bittorrent.html"><strong aria-hidden="true">3.</strong> Bittorrent</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../bittorrent/piece-length-selection.html"><strong aria-hidden="true">3.1.</strong> Piece Length Selection</a></li><li class="chapter-item expanded "><a href="../bittorrent/bep-support.html"><strong aria-hidden="true">3.2.</strong> BEP Support</a></li><li class="chapter-item expanded "><a href="../bittorrent/metainfo-utilities.html"><strong aria-hidden="true">3.3.</strong> Metainfo Utilities</a></li><li class="chapter-item expanded "><a href="../bittorrent/distributing-large-data-sets.html"><strong aria-hidden="true">3.4.</strong> Distributing Large Data Sets</a></li><li class="chapter-item expanded "><a href="../bittorrent/udp-tracker-protocol.html"><strong aria-hidden="true">3.5.</strong> UDP Tracker Protocol</a></li></ol></li><li class="chapter-item expanded "><a href="../references.html"><strong aria-hidden="true">4.</strong> References</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../references/bittorrent.html"><strong aria-hidden="true">4.1.</strong> BitTorrent</a></li><li class="chapter-item expanded "><a href="../references/metadata.html"><strong aria-hidden="true">4.2.</strong> Metadata</a></li><li class="chapter-item expanded "><a href="../references/cryptography.html"><strong aria-hidden="true">4.3.</strong> Cryptography</a></li></ol></li></ol>
             </div>
-            <div id="sidebar-resize-handle" class="sidebar-resize-handle"></div>
+            <div id="sidebar-resize-handle" class="sidebar-resize-handle">
+                <div class="sidebar-resize-indicator"></div>
+            </div>
         </nav>
 
         <!-- Track and set sidebar scroll position -->
@@ -117,9 +124,9 @@
                                 <div id="menu-bar-hover-placeholder"></div>
                 <div id="menu-bar" class="menu-bar sticky">
                     <div class="left-buttons">
-                        <button id="sidebar-toggle" class="icon-button" type="button" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
+                        <label id="sidebar-toggle" class="icon-button" for="sidebar-toggle-anchor" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
                             <i class="fa fa-bars"></i>
-                        </button>
+                        </label>
                         <button id="theme-toggle" class="icon-button" type="button" title="Change theme" aria-label="Change theme" aria-haspopup="true" aria-expanded="false" aria-controls="theme-list">
                             <i class="fa fa-paint-brush"></i>
                         </button>
@@ -204,7 +211,7 @@ <h1 id="imdl-torrent"><a class="header" href="#imdl-torrent"><code>imdl torrent<
                                 <i class="fa fa-angle-left"></i>
                             </a>
 
-                            <a rel="next" href="../commands/imdl-torrent-announce.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
+                            <a rel="next prefetch" href="../commands/imdl-torrent-announce.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
                                 <i class="fa fa-angle-right"></i>
                             </a>
 
@@ -218,7 +225,7 @@ <h1 id="imdl-torrent"><a class="header" href="#imdl-torrent"><code>imdl torrent<
                         <i class="fa fa-angle-left"></i>
                     </a>
 
-                    <a rel="next" href="../commands/imdl-torrent-announce.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
+                    <a rel="next prefetch" href="../commands/imdl-torrent-announce.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
                         <i class="fa fa-angle-right"></i>
                     </a>
             </nav>
diff --git a/book/commands/imdl.html b/book/commands/imdl.html
index df1e0848..f89193cd 100644
--- a/book/commands/imdl.html
+++ b/book/commands/imdl.html
@@ -1,5 +1,5 @@
 <!DOCTYPE HTML>
-<html lang="en" class="sidebar-visible no-js ayu">
+<html lang="en" class="ayu" dir="ltr">
     <head>
         <!-- Book generated using mdBook -->
         <meta charset="UTF-8">
@@ -10,7 +10,7 @@
         
         <meta name="description" content="">
         <meta name="viewport" content="width=device-width, initial-scale=1">
-        <meta name="theme-color" content="#ffffff" />
+        <meta name="theme-color" content="#ffffff">
 
         <link rel="icon" href="../favicon.svg">
         <link rel="shortcut icon" href="../favicon.png">
@@ -32,7 +32,7 @@
         <link rel="stylesheet" href="../custom.css">
 
     </head>
-    <body>
+    <body class="sidebar-visible no-js">
     <div id="body-container">
         <!-- Provide site root to javascript -->
         <script>
@@ -62,31 +62,38 @@
             try { theme = localStorage.getItem('mdbook-theme'); } catch(e) { }
             if (theme === null || theme === undefined) { theme = default_theme; }
             var html = document.querySelector('html');
-            html.classList.remove('no-js')
             html.classList.remove('ayu')
             html.classList.add(theme);
-            html.classList.add('js');
+            var body = document.querySelector('body');
+            body.classList.remove('no-js')
+            body.classList.add('js');
         </script>
 
+        <input type="checkbox" id="sidebar-toggle-anchor" class="hidden">
+
         <!-- Hide / unhide sidebar before it is displayed -->
         <script>
-            var html = document.querySelector('html');
+            var body = document.querySelector('body');
             var sidebar = null;
+            var sidebar_toggle = document.getElementById("sidebar-toggle-anchor");
             if (document.body.clientWidth >= 1080) {
                 try { sidebar = localStorage.getItem('mdbook-sidebar'); } catch(e) { }
                 sidebar = sidebar || 'visible';
             } else {
                 sidebar = 'hidden';
             }
-            html.classList.remove('sidebar-visible');
-            html.classList.add("sidebar-" + sidebar);
+            sidebar_toggle.checked = sidebar === 'visible';
+            body.classList.remove('sidebar-visible');
+            body.classList.add("sidebar-" + sidebar);
         </script>
 
         <nav id="sidebar" class="sidebar" aria-label="Table of contents">
             <div class="sidebar-scrollbox">
                 <ol class="chapter"><li class="chapter-item expanded affix "><a href="../introduction.html">Intermodal</a></li><li class="chapter-item expanded "><a href="../faq.html"><strong aria-hidden="true">1.</strong> FAQ</a></li><li class="chapter-item expanded "><a href="../commands.html"><strong aria-hidden="true">2.</strong> Commands</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../commands/imdl.html" class="active"><strong aria-hidden="true">2.1.</strong> imdl</a></li><li class="chapter-item expanded "><a href="../commands/imdl-completions.html"><strong aria-hidden="true">2.2.</strong> imdl completions</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent.html"><strong aria-hidden="true">2.3.</strong> imdl torrent</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-announce.html"><strong aria-hidden="true">2.4.</strong> imdl torrent announce</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-create.html"><strong aria-hidden="true">2.5.</strong> imdl torrent create</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-from-link.html"><strong aria-hidden="true">2.6.</strong> imdl torrent from-link</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-link.html"><strong aria-hidden="true">2.7.</strong> imdl torrent link</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-piece-length.html"><strong aria-hidden="true">2.8.</strong> imdl torrent piece-length</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-show.html"><strong aria-hidden="true">2.9.</strong> imdl torrent show</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-stats.html"><strong aria-hidden="true">2.10.</strong> imdl torrent stats</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-verify.html"><strong aria-hidden="true">2.11.</strong> imdl torrent verify</a></li></ol></li><li class="chapter-item expanded "><a href="../bittorrent.html"><strong aria-hidden="true">3.</strong> Bittorrent</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../bittorrent/piece-length-selection.html"><strong aria-hidden="true">3.1.</strong> Piece Length Selection</a></li><li class="chapter-item expanded "><a href="../bittorrent/bep-support.html"><strong aria-hidden="true">3.2.</strong> BEP Support</a></li><li class="chapter-item expanded "><a href="../bittorrent/metainfo-utilities.html"><strong aria-hidden="true">3.3.</strong> Metainfo Utilities</a></li><li class="chapter-item expanded "><a href="../bittorrent/distributing-large-data-sets.html"><strong aria-hidden="true">3.4.</strong> Distributing Large Data Sets</a></li><li class="chapter-item expanded "><a href="../bittorrent/udp-tracker-protocol.html"><strong aria-hidden="true">3.5.</strong> UDP Tracker Protocol</a></li></ol></li><li class="chapter-item expanded "><a href="../references.html"><strong aria-hidden="true">4.</strong> References</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../references/bittorrent.html"><strong aria-hidden="true">4.1.</strong> BitTorrent</a></li><li class="chapter-item expanded "><a href="../references/metadata.html"><strong aria-hidden="true">4.2.</strong> Metadata</a></li><li class="chapter-item expanded "><a href="../references/cryptography.html"><strong aria-hidden="true">4.3.</strong> Cryptography</a></li></ol></li></ol>
             </div>
-            <div id="sidebar-resize-handle" class="sidebar-resize-handle"></div>
+            <div id="sidebar-resize-handle" class="sidebar-resize-handle">
+                <div class="sidebar-resize-indicator"></div>
+            </div>
         </nav>
 
         <!-- Track and set sidebar scroll position -->
@@ -117,9 +124,9 @@
                                 <div id="menu-bar-hover-placeholder"></div>
                 <div id="menu-bar" class="menu-bar sticky">
                     <div class="left-buttons">
-                        <button id="sidebar-toggle" class="icon-button" type="button" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
+                        <label id="sidebar-toggle" class="icon-button" for="sidebar-toggle-anchor" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
                             <i class="fa fa-bars"></i>
-                        </button>
+                        </label>
                         <button id="theme-toggle" class="icon-button" type="button" title="Change theme" aria-label="Change theme" aria-haspopup="true" aria-expanded="false" aria-controls="theme-list">
                             <i class="fa fa-paint-brush"></i>
                         </button>
@@ -217,7 +224,7 @@ <h1 id="imdl"><a class="header" href="#imdl"><code>imdl</code></a></h1>
                                 <i class="fa fa-angle-left"></i>
                             </a>
 
-                            <a rel="next" href="../commands/imdl-completions.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
+                            <a rel="next prefetch" href="../commands/imdl-completions.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
                                 <i class="fa fa-angle-right"></i>
                             </a>
 
@@ -231,7 +238,7 @@ <h1 id="imdl"><a class="header" href="#imdl"><code>imdl</code></a></h1>
                         <i class="fa fa-angle-left"></i>
                     </a>
 
-                    <a rel="next" href="../commands/imdl-completions.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
+                    <a rel="next prefetch" href="../commands/imdl-completions.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
                         <i class="fa fa-angle-right"></i>
                     </a>
             </nav>
diff --git a/book/css/chrome.css b/book/css/chrome.css
index 29992f7b..8b78255d 100644
--- a/book/css/chrome.css
+++ b/book/css/chrome.css
@@ -37,9 +37,9 @@ a > .hljs {
     display: flex;
     flex-wrap: wrap;
     background-color: var(--bg);
-    border-bottom-color: var(--bg);
-    border-bottom-width: 1px;
-    border-bottom-style: solid;
+    border-block-end-color: var(--bg);
+    border-block-end-width: 1px;
+    border-block-end-style: solid;
 }
 #menu-bar.sticky,
 .js #menu-bar-hover-placeholder:hover + #menu-bar,
@@ -56,7 +56,7 @@ a > .hljs {
     height: var(--menu-bar-height);
 }
 #menu-bar.bordered {
-    border-bottom-color: var(--table-border-color);
+    border-block-end-color: var(--table-border-color);
 }
 #menu-bar i, #menu-bar .icon-button {
     position: relative;
@@ -93,7 +93,7 @@ a > .hljs {
     display: flex;
     margin: 0 5px;
 }
-.no-js .left-buttons {
+.no-js .left-buttons button {
     display: none;
 }
 
@@ -160,7 +160,7 @@ a > .hljs {
 }
 
 .nav-wrapper {
-    margin-top: 50px;
+    margin-block-start: 50px;
     display: none;
 }
 
@@ -173,23 +173,34 @@ a > .hljs {
     background-color: var(--sidebar-bg);
 }
 
-.previous {
-    float: left;
-}
+/* Only Firefox supports flow-relative values */
+.previous { float: left; }
+[dir=rtl] .previous { float: right; }
 
+/* Only Firefox supports flow-relative values */
 .next {
     float: right;
     right: var(--page-padding);
 }
+[dir=rtl] .next {
+    float: left;
+    right: unset;
+    left: var(--page-padding);
+}
+
+/* Use the correct buttons for RTL layouts*/
+[dir=rtl] .previous i.fa-angle-left:before {content:"\f105";}
+[dir=rtl] .next i.fa-angle-right:before { content:"\f104"; }
 
 @media only screen and (max-width: 1080px) {
     .nav-wide-wrapper { display: none; }
     .nav-wrapper { display: block; }
 }
 
+/* sidebar-visible */
 @media only screen and (max-width: 1380px) {
-    .sidebar-visible .nav-wide-wrapper { display: none; }
-    .sidebar-visible .nav-wrapper { display: block; }
+    #sidebar-toggle-anchor:checked ~ .page-wrapper .nav-wide-wrapper { display: none; }
+    #sidebar-toggle-anchor:checked ~ .page-wrapper .nav-wrapper { display: block; }
 }
 
 /* Inline code */
@@ -236,7 +247,7 @@ pre > .buttons :hover {
     background-color: var(--theme-hover);
 }
 pre > .buttons i {
-    margin-left: 8px;
+    margin-inline-start: 8px;
 }
 pre > .buttons button {
     cursor: inherit;
@@ -258,8 +269,14 @@ pre > .buttons button {
         /* On mobile, make it easier to tap buttons. */
         padding: 0.3rem 1rem;
     }
+
+    .sidebar-resize-indicator {
+        /* Hide resize indicator on devices with limited accuracy */
+        display: none;
+    }
 }
 pre > code {
+    display: block;
     padding: 1rem;
 }
 
@@ -273,7 +290,7 @@ pre > code {
 }
 
 pre > .result {
-    margin-top: 10px;
+    margin-block-start: 10px;
 }
 
 /* Search */
@@ -284,8 +301,14 @@ pre > .result {
 
 mark {
     border-radius: 2px;
-    padding: 0 3px 1px 3px;
-    margin: 0 -3px -1px -3px;
+    padding-block-start: 0;
+    padding-block-end: 1px;
+    padding-inline-start: 3px;
+    padding-inline-end: 3px;
+    margin-block-start: 0;
+    margin-block-end: -1px;
+    margin-inline-start: -3px;
+    margin-inline-end: -3px;
     background-color: var(--search-mark-bg);
     transition: background-color 300ms linear;
     cursor: pointer;
@@ -297,14 +320,17 @@ mark.fade-out {
 }
 
 .searchbar-outer {
-    margin-left: auto;
-    margin-right: auto;
+    margin-inline-start: auto;
+    margin-inline-end: auto;
     max-width: var(--content-max-width);
 }
 
 #searchbar {
     width: 100%;
-    margin: 5px auto 0px auto;
+    margin-block-start: 5px;
+    margin-block-end: 0;
+    margin-inline-start: auto;
+    margin-inline-end: auto;
     padding: 10px 16px;
     transition: box-shadow 300ms ease-in-out;
     border: 1px solid var(--searchbar-border-color);
@@ -320,20 +346,23 @@ mark.fade-out {
 .searchresults-header {
     font-weight: bold;
     font-size: 1em;
-    padding: 18px 0 0 5px;
+    padding-block-start: 18px;
+    padding-block-end: 0;
+    padding-inline-start: 5px;
+    padding-inline-end: 0;
     color: var(--searchresults-header-fg);
 }
 
 .searchresults-outer {
-    margin-left: auto;
-    margin-right: auto;
+    margin-inline-start: auto;
+    margin-inline-end: auto;
     max-width: var(--content-max-width);
-    border-bottom: 1px dashed var(--searchresults-border-color);
+    border-block-end: 1px dashed var(--searchresults-border-color);
 }
 
 ul#searchresults {
     list-style: none;
-    padding-left: 20px;
+    padding-inline-start: 20px;
 }
 ul#searchresults li {
     margin: 10px 0px;
@@ -346,7 +375,10 @@ ul#searchresults li.focus {
 ul#searchresults span.teaser {
     display: block;
     clear: both;
-    margin: 5px 0 0 20px;
+    margin-block-start: 5px;
+    margin-block-end: 0;
+    margin-inline-start: 20px;
+    margin-inline-end: 0;
     font-size: 0.8em;
 }
 ul#searchresults span.teaser em {
@@ -369,12 +401,14 @@ ul#searchresults span.teaser em {
     background-color: var(--sidebar-bg);
     color: var(--sidebar-fg);
 }
+[dir=rtl] .sidebar { left: unset; right: 0; }
 .sidebar-resizing {
     -moz-user-select: none;
     -webkit-user-select: none;
     -ms-user-select: none;
     user-select: none;
 }
+.no-js .sidebar,
 .js:not(.sidebar-resizing) .sidebar {
     transition: transform 0.3s; /* Animation: slide away */
 }
@@ -394,16 +428,35 @@ ul#searchresults span.teaser em {
     position: absolute;
     cursor: col-resize;
     width: 0;
-    right: 0;
+    right: calc(var(--sidebar-resize-indicator-width) * -1);
     top: 0;
     bottom: 0;
+    display: flex;
+    align-items: center;
+}
+
+.sidebar-resize-handle .sidebar-resize-indicator {
+    width: 100%;
+    height: 12px;
+    background-color: var(--icons);
+    margin-inline-start: var(--sidebar-resize-indicator-space);
+}
+
+[dir=rtl] .sidebar .sidebar-resize-handle {
+    left: calc(var(--sidebar-resize-indicator-width) * -1);
+    right: unset;
 }
 .js .sidebar .sidebar-resize-handle {
     cursor: col-resize;
-    width: 5px;
+    width: calc(var(--sidebar-resize-indicator-width) - var(--sidebar-resize-indicator-space));
 }
-.sidebar-hidden .sidebar {
-    transform: translateX(calc(0px - var(--sidebar-width)));
+/* sidebar-hidden */
+#sidebar-toggle-anchor:not(:checked) ~ .sidebar {
+    transform: translateX(calc(0px - var(--sidebar-width) - var(--sidebar-resize-indicator-width)));
+    z-index: -1;
+}
+[dir=rtl] #sidebar-toggle-anchor:not(:checked) ~ .sidebar {
+    transform: translateX(calc(var(--sidebar-width) + var(--sidebar-resize-indicator-width)));
 }
 .sidebar::-webkit-scrollbar {
     background: var(--sidebar-bg);
@@ -412,19 +465,26 @@ ul#searchresults span.teaser em {
     background: var(--scrollbar);
 }
 
-.sidebar-visible .page-wrapper {
-    transform: translateX(var(--sidebar-width));
+/* sidebar-visible */
+#sidebar-toggle-anchor:checked ~ .page-wrapper {
+    transform: translateX(calc(var(--sidebar-width) + var(--sidebar-resize-indicator-width)));
+}
+[dir=rtl] #sidebar-toggle-anchor:checked ~ .page-wrapper {
+    transform: translateX(calc(0px - var(--sidebar-width) - var(--sidebar-resize-indicator-width)));
 }
 @media only screen and (min-width: 620px) {
-    .sidebar-visible .page-wrapper {
+    #sidebar-toggle-anchor:checked ~ .page-wrapper {
+        transform: none;
+        margin-inline-start: calc(var(--sidebar-width) + var(--sidebar-resize-indicator-width));
+    }
+    [dir=rtl] #sidebar-toggle-anchor:checked ~ .page-wrapper {
         transform: none;
-        margin-left: var(--sidebar-width);
     }
 }
 
 .chapter {
     list-style: none outside none;
-    padding-left: 0;
+    padding-inline-start: 0;
     line-height: 2.2em;
 }
 
@@ -454,7 +514,7 @@ ul#searchresults span.teaser em {
 .chapter li > a.toggle {
     cursor: pointer;
     display: block;
-    margin-left: auto;
+    margin-inline-start: auto;
     padding: 0 10px;
     user-select: none;
     opacity: 0.68;
@@ -471,7 +531,7 @@ ul#searchresults span.teaser em {
 
 .chapter li.chapter-item {
     line-height: 1.5em;
-    margin-top: 0.6em;
+    margin-block-start: 0.6em;
 }
 
 .chapter li.expanded > a.toggle div {
@@ -494,7 +554,7 @@ ul#searchresults span.teaser em {
 
 .section {
     list-style: none outside none;
-    padding-left: 20px;
+    padding-inline-start: 20px;
     line-height: 1.9em;
 }
 
@@ -517,6 +577,7 @@ ul#searchresults span.teaser em {
     /* Don't let the children's background extend past the rounded corners. */
     overflow: hidden;
 }
+[dir=rtl] .theme-popup { left: unset;  right: 10px; }
 .theme-popup .default {
     color: var(--icons);
 }
@@ -527,7 +588,7 @@ ul#searchresults span.teaser em {
     padding: 2px 20px;
     line-height: 25px;
     white-space: nowrap;
-    text-align: left;
+    text-align: start;
     cursor: pointer;
     color: inherit;
     background: inherit;
@@ -540,6 +601,6 @@ ul#searchresults span.teaser em {
 .theme-selected::before {
     display: inline-block;
     content: "✓";
-    margin-left: -14px;
+    margin-inline-start: -14px;
     width: 14px;
 }
diff --git a/book/css/general.css b/book/css/general.css
index a6db6805..e7d20da7 100644
--- a/book/css/general.css
+++ b/book/css/general.css
@@ -25,6 +25,7 @@ body {
 code {
     font-family: var(--mono-font) !important;
     font-size: var(--code-font-size);
+    direction: ltr !important;
 }
 
 /* make long words/inline code not x overflow */
@@ -48,13 +49,13 @@ h1 code, h2 code, h3 code, h4 code, h5 code, h6 code {
 .hide-boring .boring { display: none; }
 .hidden { display: none !important; }
 
-h2, h3 { margin-top: 2.5em; }
-h4, h5 { margin-top: 2em; }
+h2, h3 { margin-block-start: 2.5em; }
+h4, h5 { margin-block-start: 2em; }
 
 .header + .header h3,
 .header + .header h4,
 .header + .header h5 {
-    margin-top: 1em;
+    margin-block-start: 1em;
 }
 
 h1:target::before,
@@ -65,7 +66,7 @@ h5:target::before,
 h6:target::before {
     display: inline-block;
     content: "»";
-    margin-left: -30px;
+    margin-inline-start: -30px;
     width: 30px;
 }
 
@@ -74,28 +75,34 @@ h6:target::before {
    https://bugs.webkit.org/show_bug.cgi?id=218076
 */
 :target {
+    /* Safari does not support logical properties */
     scroll-margin-top: calc(var(--menu-bar-height) + 0.5em);
 }
 
 .page {
     outline: 0;
     padding: 0 var(--page-padding);
-    margin-top: calc(0px - var(--menu-bar-height)); /* Compensate for the #menu-bar-hover-placeholder */
+    margin-block-start: calc(0px - var(--menu-bar-height)); /* Compensate for the #menu-bar-hover-placeholder */
 }
 .page-wrapper {
     box-sizing: border-box;
+    background-color: var(--bg);
 }
+.no-js .page-wrapper,
 .js:not(.sidebar-resizing) .page-wrapper {
     transition: margin-left 0.3s ease, transform 0.3s ease; /* Animation: slide away */
 }
+[dir=rtl] .js:not(.sidebar-resizing) .page-wrapper {
+    transition: margin-right 0.3s ease, transform 0.3s ease; /* Animation: slide away */
+}
 
 .content {
     overflow-y: auto;
     padding: 0 5px 50px 5px;
 }
 .content main {
-    margin-left: auto;
-    margin-right: auto;
+    margin-inline-start: auto;
+    margin-inline-end: auto;
     max-width: var(--content-max-width);
 }
 .content p { line-height: 1.45em; }
@@ -145,8 +152,31 @@ blockquote {
     padding: 0 20px;
     color: var(--fg);
     background-color: var(--quote-bg);
-    border-top: .1em solid var(--quote-border);
-    border-bottom: .1em solid var(--quote-border);
+    border-block-start: .1em solid var(--quote-border);
+    border-block-end: .1em solid var(--quote-border);
+}
+
+.warning {
+    margin: 20px;
+    padding: 0 20px;
+    border-inline-start: 2px solid var(--warning-border);
+}
+
+.warning:before {
+    position: absolute;
+    width: 3rem;
+    height: 3rem;
+    margin-inline-start: calc(-1.5rem - 21px);
+    content: "ⓘ";
+    text-align: center;
+    background-color: var(--bg);
+    color: var(--warning-border);
+    font-weight: bold;
+    font-size: 2rem;
+}
+
+blockquote .warning:before {
+    background-color: var(--quote-bg);
 }
 
 kbd {
@@ -164,7 +194,7 @@ kbd {
 
 :not(.footnote-definition) + .footnote-definition,
 .footnote-definition + :not(.footnote-definition) {
-    margin-top: 2em;
+    margin-block-start: 2em;
 }
 .footnote-definition {
     font-size: 0.9em;
diff --git a/book/css/print.css b/book/css/print.css
index 27d05e92..80ec3a54 100644
--- a/book/css/print.css
+++ b/book/css/print.css
@@ -7,8 +7,8 @@
 }
 
 #page-wrapper.page-wrapper {
-    transform: none;
-    margin-left: 0px;
+    transform: none !important;
+    margin-inline-start: 0px;
     overflow-y: initial;
 }
 
@@ -22,6 +22,10 @@
     overflow-y: initial;
 }
 
+code {
+    direction: ltr !important;
+}
+
 pre > .buttons {
     z-index: 2;
 }
diff --git a/book/css/variables.css b/book/css/variables.css
index 59fcda88..0da55e8c 100644
--- a/book/css/variables.css
+++ b/book/css/variables.css
@@ -3,6 +3,8 @@
 
 :root {
     --sidebar-width: 300px;
+    --sidebar-resize-indicator-width: 8px;
+    --sidebar-resize-indicator-space: 2px;
     --page-padding: 15px;
     --content-max-width: 750px;
     --menu-bar-height: 50px;
@@ -38,6 +40,8 @@
     --quote-bg: hsl(226, 15%, 17%);
     --quote-border: hsl(226, 15%, 22%);
 
+    --warning-border: #ff8e00;
+
     --table-border-color: hsl(210, 25%, 13%);
     --table-header-bg: hsl(210, 25%, 28%);
     --table-alternate-bg: hsl(210, 25%, 11%);
@@ -80,6 +84,8 @@
     --quote-bg: hsl(234, 21%, 18%);
     --quote-border: hsl(234, 21%, 23%);
 
+    --warning-border: #ff8e00;
+
     --table-border-color: hsl(200, 7%, 13%);
     --table-header-bg: hsl(200, 7%, 28%);
     --table-alternate-bg: hsl(200, 7%, 11%);
@@ -122,6 +128,8 @@
     --quote-bg: hsl(197, 37%, 96%);
     --quote-border: hsl(197, 37%, 91%);
 
+    --warning-border: #ff8e00;
+
     --table-border-color: hsl(0, 0%, 95%);
     --table-header-bg: hsl(0, 0%, 80%);
     --table-alternate-bg: hsl(0, 0%, 97%);
@@ -164,6 +172,8 @@
     --quote-bg: hsl(226, 15%, 17%);
     --quote-border: hsl(226, 15%, 22%);
 
+    --warning-border: #ff8e00;
+
     --table-border-color: hsl(226, 23%, 16%);
     --table-header-bg: hsl(226, 23%, 31%);
     --table-alternate-bg: hsl(226, 23%, 14%);
@@ -206,6 +216,8 @@
     --quote-bg: hsl(60, 5%, 75%);
     --quote-border: hsl(60, 5%, 70%);
 
+    --warning-border: #ff8e00;
+
     --table-border-color: hsl(60, 9%, 82%);
     --table-header-bg: #b3a497;
     --table-alternate-bg: hsl(60, 9%, 84%);
@@ -249,6 +261,8 @@
         --quote-bg: hsl(234, 21%, 18%);
         --quote-border: hsl(234, 21%, 23%);
 
+        --warning-border: #ff8e00;
+
         --table-border-color: hsl(200, 7%, 13%);
         --table-header-bg: hsl(200, 7%, 28%);
         --table-alternate-bg: hsl(200, 7%, 11%);
diff --git a/book/faq.html b/book/faq.html
index 70ce3271..7a630227 100644
--- a/book/faq.html
+++ b/book/faq.html
@@ -1,5 +1,5 @@
 <!DOCTYPE HTML>
-<html lang="en" class="sidebar-visible no-js ayu">
+<html lang="en" class="ayu" dir="ltr">
     <head>
         <!-- Book generated using mdBook -->
         <meta charset="UTF-8">
@@ -10,7 +10,7 @@
         
         <meta name="description" content="">
         <meta name="viewport" content="width=device-width, initial-scale=1">
-        <meta name="theme-color" content="#ffffff" />
+        <meta name="theme-color" content="#ffffff">
 
         <link rel="icon" href="favicon.svg">
         <link rel="shortcut icon" href="favicon.png">
@@ -32,7 +32,7 @@
         <link rel="stylesheet" href="custom.css">
 
     </head>
-    <body>
+    <body class="sidebar-visible no-js">
     <div id="body-container">
         <!-- Provide site root to javascript -->
         <script>
@@ -62,31 +62,38 @@
             try { theme = localStorage.getItem('mdbook-theme'); } catch(e) { }
             if (theme === null || theme === undefined) { theme = default_theme; }
             var html = document.querySelector('html');
-            html.classList.remove('no-js')
             html.classList.remove('ayu')
             html.classList.add(theme);
-            html.classList.add('js');
+            var body = document.querySelector('body');
+            body.classList.remove('no-js')
+            body.classList.add('js');
         </script>
 
+        <input type="checkbox" id="sidebar-toggle-anchor" class="hidden">
+
         <!-- Hide / unhide sidebar before it is displayed -->
         <script>
-            var html = document.querySelector('html');
+            var body = document.querySelector('body');
             var sidebar = null;
+            var sidebar_toggle = document.getElementById("sidebar-toggle-anchor");
             if (document.body.clientWidth >= 1080) {
                 try { sidebar = localStorage.getItem('mdbook-sidebar'); } catch(e) { }
                 sidebar = sidebar || 'visible';
             } else {
                 sidebar = 'hidden';
             }
-            html.classList.remove('sidebar-visible');
-            html.classList.add("sidebar-" + sidebar);
+            sidebar_toggle.checked = sidebar === 'visible';
+            body.classList.remove('sidebar-visible');
+            body.classList.add("sidebar-" + sidebar);
         </script>
 
         <nav id="sidebar" class="sidebar" aria-label="Table of contents">
             <div class="sidebar-scrollbox">
                 <ol class="chapter"><li class="chapter-item expanded affix "><a href="introduction.html">Intermodal</a></li><li class="chapter-item expanded "><a href="faq.html" class="active"><strong aria-hidden="true">1.</strong> FAQ</a></li><li class="chapter-item expanded "><a href="commands.html"><strong aria-hidden="true">2.</strong> Commands</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="commands/imdl.html"><strong aria-hidden="true">2.1.</strong> imdl</a></li><li class="chapter-item expanded "><a href="commands/imdl-completions.html"><strong aria-hidden="true">2.2.</strong> imdl completions</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent.html"><strong aria-hidden="true">2.3.</strong> imdl torrent</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-announce.html"><strong aria-hidden="true">2.4.</strong> imdl torrent announce</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-create.html"><strong aria-hidden="true">2.5.</strong> imdl torrent create</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-from-link.html"><strong aria-hidden="true">2.6.</strong> imdl torrent from-link</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-link.html"><strong aria-hidden="true">2.7.</strong> imdl torrent link</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-piece-length.html"><strong aria-hidden="true">2.8.</strong> imdl torrent piece-length</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-show.html"><strong aria-hidden="true">2.9.</strong> imdl torrent show</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-stats.html"><strong aria-hidden="true">2.10.</strong> imdl torrent stats</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-verify.html"><strong aria-hidden="true">2.11.</strong> imdl torrent verify</a></li></ol></li><li class="chapter-item expanded "><a href="bittorrent.html"><strong aria-hidden="true">3.</strong> Bittorrent</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="bittorrent/piece-length-selection.html"><strong aria-hidden="true">3.1.</strong> Piece Length Selection</a></li><li class="chapter-item expanded "><a href="bittorrent/bep-support.html"><strong aria-hidden="true">3.2.</strong> BEP Support</a></li><li class="chapter-item expanded "><a href="bittorrent/metainfo-utilities.html"><strong aria-hidden="true">3.3.</strong> Metainfo Utilities</a></li><li class="chapter-item expanded "><a href="bittorrent/distributing-large-data-sets.html"><strong aria-hidden="true">3.4.</strong> Distributing Large Data Sets</a></li><li class="chapter-item expanded "><a href="bittorrent/udp-tracker-protocol.html"><strong aria-hidden="true">3.5.</strong> UDP Tracker Protocol</a></li></ol></li><li class="chapter-item expanded "><a href="references.html"><strong aria-hidden="true">4.</strong> References</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="references/bittorrent.html"><strong aria-hidden="true">4.1.</strong> BitTorrent</a></li><li class="chapter-item expanded "><a href="references/metadata.html"><strong aria-hidden="true">4.2.</strong> Metadata</a></li><li class="chapter-item expanded "><a href="references/cryptography.html"><strong aria-hidden="true">4.3.</strong> Cryptography</a></li></ol></li></ol>
             </div>
-            <div id="sidebar-resize-handle" class="sidebar-resize-handle"></div>
+            <div id="sidebar-resize-handle" class="sidebar-resize-handle">
+                <div class="sidebar-resize-indicator"></div>
+            </div>
         </nav>
 
         <!-- Track and set sidebar scroll position -->
@@ -117,9 +124,9 @@
                                 <div id="menu-bar-hover-placeholder"></div>
                 <div id="menu-bar" class="menu-bar sticky">
                     <div class="left-buttons">
-                        <button id="sidebar-toggle" class="icon-button" type="button" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
+                        <label id="sidebar-toggle" class="icon-button" for="sidebar-toggle-anchor" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
                             <i class="fa fa-bars"></i>
-                        </button>
+                        </label>
                         <button id="theme-toggle" class="icon-button" type="button" title="Change theme" aria-label="Change theme" aria-haspopup="true" aria-expanded="false" aria-controls="theme-list">
                             <i class="fa fa-paint-brush"></i>
                         </button>
@@ -242,7 +249,7 @@ <h2 id="how-do-i-include-and-exclude-files-when-creating-a-torrent"><a class="he
                                 <i class="fa fa-angle-left"></i>
                             </a>
 
-                            <a rel="next" href="commands.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
+                            <a rel="next prefetch" href="commands.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
                                 <i class="fa fa-angle-right"></i>
                             </a>
 
@@ -256,7 +263,7 @@ <h2 id="how-do-i-include-and-exclude-files-when-creating-a-torrent"><a class="he
                         <i class="fa fa-angle-left"></i>
                     </a>
 
-                    <a rel="next" href="commands.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
+                    <a rel="next prefetch" href="commands.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
                         <i class="fa fa-angle-right"></i>
                     </a>
             </nav>
diff --git a/book/highlight.js b/book/highlight.js
index 180385b7..3256c00e 100644
--- a/book/highlight.js
+++ b/book/highlight.js
@@ -3,4 +3,51 @@
   License: BSD-3-Clause
   Copyright (c) 2006-2020, Ivan Sagalaev
 */
-var hljs=function(){"use strict";function e(n){Object.freeze(n);var t="function"==typeof n;return Object.getOwnPropertyNames(n).forEach((function(r){!Object.hasOwnProperty.call(n,r)||null===n[r]||"object"!=typeof n[r]&&"function"!=typeof n[r]||t&&("caller"===r||"callee"===r||"arguments"===r)||Object.isFrozen(n[r])||e(n[r])})),n}class n{constructor(e){void 0===e.data&&(e.data={}),this.data=e.data}ignoreMatch(){this.ignore=!0}}function t(e){return e.replace(/&/g,"&amp;").replace(/</g,"&lt;").replace(/>/g,"&gt;").replace(/"/g,"&quot;").replace(/'/g,"&#x27;")}function r(e,...n){var t={};for(const n in e)t[n]=e[n];return n.forEach((function(e){for(const n in e)t[n]=e[n]})),t}function a(e){return e.nodeName.toLowerCase()}var i=Object.freeze({__proto__:null,escapeHTML:t,inherit:r,nodeStream:function(e){var n=[];return function e(t,r){for(var i=t.firstChild;i;i=i.nextSibling)3===i.nodeType?r+=i.nodeValue.length:1===i.nodeType&&(n.push({event:"start",offset:r,node:i}),r=e(i,r),a(i).match(/br|hr|img|input/)||n.push({event:"stop",offset:r,node:i}));return r}(e,0),n},mergeStreams:function(e,n,r){var i=0,s="",o=[];function l(){return e.length&&n.length?e[0].offset!==n[0].offset?e[0].offset<n[0].offset?e:n:"start"===n[0].event?e:n:e.length?e:n}function c(e){s+="<"+a(e)+[].map.call(e.attributes,(function(e){return" "+e.nodeName+'="'+t(e.value)+'"'})).join("")+">"}function u(e){s+="</"+a(e)+">"}function d(e){("start"===e.event?c:u)(e.node)}for(;e.length||n.length;){var g=l();if(s+=t(r.substring(i,g[0].offset)),i=g[0].offset,g===e){o.reverse().forEach(u);do{d(g.splice(0,1)[0]),g=l()}while(g===e&&g.length&&g[0].offset===i);o.reverse().forEach(c)}else"start"===g[0].event?o.push(g[0].node):o.pop(),d(g.splice(0,1)[0])}return s+t(r.substr(i))}});const s="</span>",o=e=>!!e.kind;class l{constructor(e,n){this.buffer="",this.classPrefix=n.classPrefix,e.walk(this)}addText(e){this.buffer+=t(e)}openNode(e){if(!o(e))return;let n=e.kind;e.sublanguage||(n=`${this.classPrefix}${n}`),this.span(n)}closeNode(e){o(e)&&(this.buffer+=s)}value(){return this.buffer}span(e){this.buffer+=`<span class="${e}">`}}class c{constructor(){this.rootNode={children:[]},this.stack=[this.rootNode]}get top(){return this.stack[this.stack.length-1]}get root(){return this.rootNode}add(e){this.top.children.push(e)}openNode(e){const n={kind:e,children:[]};this.add(n),this.stack.push(n)}closeNode(){if(this.stack.length>1)return this.stack.pop()}closeAllNodes(){for(;this.closeNode(););}toJSON(){return JSON.stringify(this.rootNode,null,4)}walk(e){return this.constructor._walk(e,this.rootNode)}static _walk(e,n){return"string"==typeof n?e.addText(n):n.children&&(e.openNode(n),n.children.forEach(n=>this._walk(e,n)),e.closeNode(n)),e}static _collapse(e){"string"!=typeof e&&e.children&&(e.children.every(e=>"string"==typeof e)?e.children=[e.children.join("")]:e.children.forEach(e=>{c._collapse(e)}))}}class u extends c{constructor(e){super(),this.options=e}addKeyword(e,n){""!==e&&(this.openNode(n),this.addText(e),this.closeNode())}addText(e){""!==e&&this.add(e)}addSublanguage(e,n){const t=e.root;t.kind=n,t.sublanguage=!0,this.add(t)}toHTML(){return new l(this,this.options).value()}finalize(){return!0}}function d(e){return e?"string"==typeof e?e:e.source:null}const g="(-?)(\\b0[xX][a-fA-F0-9]+|(\\b\\d+(\\.\\d*)?|\\.\\d+)([eE][-+]?\\d+)?)",h={begin:"\\\\[\\s\\S]",relevance:0},f={className:"string",begin:"'",end:"'",illegal:"\\n",contains:[h]},p={className:"string",begin:'"',end:'"',illegal:"\\n",contains:[h]},b={begin:/\b(a|an|the|are|I'm|isn't|don't|doesn't|won't|but|just|should|pretty|simply|enough|gonna|going|wtf|so|such|will|you|your|they|like|more)\b/},m=function(e,n,t={}){var a=r({className:"comment",begin:e,end:n,contains:[]},t);return a.contains.push(b),a.contains.push({className:"doctag",begin:"(?:TODO|FIXME|NOTE|BUG|OPTIMIZE|HACK|XXX):",relevance:0}),a},v=m("//","$"),x=m("/\\*","\\*/"),E=m("#","$");var _=Object.freeze({__proto__:null,IDENT_RE:"[a-zA-Z]\\w*",UNDERSCORE_IDENT_RE:"[a-zA-Z_]\\w*",NUMBER_RE:"\\b\\d+(\\.\\d+)?",C_NUMBER_RE:g,BINARY_NUMBER_RE:"\\b(0b[01]+)",RE_STARTERS_RE:"!|!=|!==|%|%=|&|&&|&=|\\*|\\*=|\\+|\\+=|,|-|-=|/=|/|:|;|<<|<<=|<=|<|===|==|=|>>>=|>>=|>=|>>>|>>|>|\\?|\\[|\\{|\\(|\\^|\\^=|\\||\\|=|\\|\\||~",SHEBANG:(e={})=>{const n=/^#![ ]*\//;return e.binary&&(e.begin=function(...e){return 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vpmaddubsw vpmaxsb vpmaxsw vpmaxsd vpmaxub vpmaxuw vpmaxud vpminsb vpminsw vpminsd vpminub vpminuw vpminud vpmovmskb vpmovsxbw vpmovsxbd vpmovsxbq vpmovsxwd vpmovsxwq vpmovsxdq vpmovzxbw vpmovzxbd vpmovzxbq vpmovzxwd vpmovzxwq vpmovzxdq vpmulhuw vpmulhrsw vpmulhw vpmullw vpmulld vpmuludq vpmuldq vpor vpsadbw vpshufb vpshufd vpshufhw vpshuflw vpsignb vpsignw vpsignd vpslldq vpsrldq vpsllw vpslld vpsllq vpsraw vpsrad vpsrlw vpsrld vpsrlq vptest vpsubb vpsubw vpsubd vpsubq vpsubsb vpsubsw vpsubusb vpsubusw vpunpckhbw vpunpckhwd vpunpckhdq vpunpckhqdq vpunpcklbw vpunpcklwd vpunpckldq vpunpcklqdq vpxor vrcpps vrcpss vrsqrtps vrsqrtss vroundpd vroundps vroundsd vroundss vshufpd vshufps vsqrtpd vsqrtps vsqrtsd vsqrtss vstmxcsr vsubpd vsubps vsubsd vsubss vtestps vtestpd vucomisd vucomiss vunpckhpd vunpckhps vunpcklpd vunpcklps vxorpd vxorps vzeroall vzeroupper pclmullqlqdq pclmulhqlqdq pclmullqhqdq pclmulhqhqdq pclmulqdq vpclmullqlqdq vpclmulhqlqdq vpclmullqhqdq vpclmulhqhqdq vpclmulqdq vfmadd132ps vfmadd132pd vfmadd312ps vfmadd312pd vfmadd213ps vfmadd213pd vfmadd123ps vfmadd123pd vfmadd231ps vfmadd231pd vfmadd321ps vfmadd321pd vfmaddsub132ps vfmaddsub132pd vfmaddsub312ps vfmaddsub312pd vfmaddsub213ps vfmaddsub213pd vfmaddsub123ps vfmaddsub123pd vfmaddsub231ps vfmaddsub231pd vfmaddsub321ps vfmaddsub321pd vfmsub132ps vfmsub132pd vfmsub312ps vfmsub312pd vfmsub213ps vfmsub213pd vfmsub123ps vfmsub123pd vfmsub231ps vfmsub231pd vfmsub321ps vfmsub321pd vfmsubadd132ps vfmsubadd132pd vfmsubadd312ps vfmsubadd312pd vfmsubadd213ps vfmsubadd213pd vfmsubadd123ps vfmsubadd123pd vfmsubadd231ps vfmsubadd231pd vfmsubadd321ps vfmsubadd321pd vfnmadd132ps vfnmadd132pd vfnmadd312ps vfnmadd312pd vfnmadd213ps vfnmadd213pd vfnmadd123ps vfnmadd123pd vfnmadd231ps vfnmadd231pd vfnmadd321ps vfnmadd321pd vfnmsub132ps vfnmsub132pd vfnmsub312ps vfnmsub312pd vfnmsub213ps vfnmsub213pd vfnmsub123ps vfnmsub123pd vfnmsub231ps vfnmsub231pd vfnmsub321ps vfnmsub321pd vfmadd132ss vfmadd132sd vfmadd312ss vfmadd312sd vfmadd213ss vfmadd213sd vfmadd123ss vfmadd123sd vfmadd231ss vfmadd231sd vfmadd321ss vfmadd321sd vfmsub132ss vfmsub132sd vfmsub312ss vfmsub312sd vfmsub213ss vfmsub213sd vfmsub123ss vfmsub123sd vfmsub231ss vfmsub231sd vfmsub321ss vfmsub321sd vfnmadd132ss vfnmadd132sd vfnmadd312ss vfnmadd312sd vfnmadd213ss vfnmadd213sd vfnmadd123ss vfnmadd123sd vfnmadd231ss vfnmadd231sd vfnmadd321ss vfnmadd321sd vfnmsub132ss vfnmsub132sd vfnmsub312ss vfnmsub312sd vfnmsub213ss vfnmsub213sd vfnmsub123ss vfnmsub123sd vfnmsub231ss vfnmsub231sd vfnmsub321ss vfnmsub321sd rdfsbase rdgsbase rdrand wrfsbase wrgsbase vcvtph2ps vcvtps2ph adcx adox rdseed clac stac xstore xcryptecb xcryptcbc xcryptctr xcryptcfb xcryptofb montmul xsha1 xsha256 llwpcb slwpcb lwpval lwpins vfmaddpd vfmaddps vfmaddsd vfmaddss vfmaddsubpd vfmaddsubps vfmsubaddpd vfmsubaddps vfmsubpd vfmsubps vfmsubsd vfmsubss vfnmaddpd vfnmaddps vfnmaddsd vfnmaddss vfnmsubpd vfnmsubps vfnmsubsd vfnmsubss vfrczpd vfrczps vfrczsd vfrczss vpcmov 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vpmovusqd vpmovusqw vpord vporq vprold vprolq vprolvd vprolvq vprord vprorq vprorvd vprorvq vpscatterdd vpscatterdq vpscatterqd vpscatterqq vpsraq vpsravq vpternlogd vpternlogq vptestmd vptestmq vptestnmd vptestnmq vpxord vpxorq vrcp14pd vrcp14ps vrcp14sd vrcp14ss vrndscalepd vrndscaleps vrndscalesd vrndscaless vrsqrt14pd vrsqrt14ps vrsqrt14sd vrsqrt14ss vscalefpd vscalefps vscalefsd vscalefss vscatterdpd vscatterdps vscatterqpd vscatterqps vshuff32x4 vshuff64x2 vshufi32x4 vshufi64x2 kandnw kandw kmovw knotw kortestw korw kshiftlw kshiftrw kunpckbw kxnorw kxorw vpbroadcastmb2q vpbroadcastmw2d vpconflictd vpconflictq vplzcntd vplzcntq vexp2pd vexp2ps vrcp28pd vrcp28ps vrcp28sd vrcp28ss vrsqrt28pd vrsqrt28ps vrsqrt28sd vrsqrt28ss vgatherpf0dpd vgatherpf0dps vgatherpf0qpd vgatherpf0qps vgatherpf1dpd vgatherpf1dps vgatherpf1qpd vgatherpf1qps vscatterpf0dpd vscatterpf0dps vscatterpf0qpd vscatterpf0qps vscatterpf1dpd vscatterpf1dps vscatterpf1qpd vscatterpf1qps prefetchwt1 bndmk bndcl bndcu bndcn bndmov bndldx bndstx sha1rnds4 sha1nexte sha1msg1 sha1msg2 sha256rnds2 sha256msg1 sha256msg2 hint_nop0 hint_nop1 hint_nop2 hint_nop3 hint_nop4 hint_nop5 hint_nop6 hint_nop7 hint_nop8 hint_nop9 hint_nop10 hint_nop11 hint_nop12 hint_nop13 hint_nop14 hint_nop15 hint_nop16 hint_nop17 hint_nop18 hint_nop19 hint_nop20 hint_nop21 hint_nop22 hint_nop23 hint_nop24 hint_nop25 hint_nop26 hint_nop27 hint_nop28 hint_nop29 hint_nop30 hint_nop31 hint_nop32 hint_nop33 hint_nop34 hint_nop35 hint_nop36 hint_nop37 hint_nop38 hint_nop39 hint_nop40 hint_nop41 hint_nop42 hint_nop43 hint_nop44 hint_nop45 hint_nop46 hint_nop47 hint_nop48 hint_nop49 hint_nop50 hint_nop51 hint_nop52 hint_nop53 hint_nop54 hint_nop55 hint_nop56 hint_nop57 hint_nop58 hint_nop59 hint_nop60 hint_nop61 hint_nop62 hint_nop63",built_in:"ip eip rip al ah bl bh cl ch dl dh sil dil bpl spl r8b r9b r10b r11b r12b r13b r14b r15b ax bx cx dx si di bp sp r8w r9w r10w r11w r12w r13w r14w r15w eax ebx ecx edx esi edi ebp esp eip r8d r9d 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diff --git a/book/index.html b/book/index.html
index 535c52ec..a820ab9e 100644
--- a/book/index.html
+++ b/book/index.html
@@ -1,5 +1,5 @@
 <!DOCTYPE HTML>
-<html lang="en" class="sidebar-visible no-js ayu">
+<html lang="en" class="ayu" dir="ltr">
     <head>
         <!-- Book generated using mdBook -->
         <meta charset="UTF-8">
@@ -10,7 +10,7 @@
         
         <meta name="description" content="">
         <meta name="viewport" content="width=device-width, initial-scale=1">
-        <meta name="theme-color" content="#ffffff" />
+        <meta name="theme-color" content="#ffffff">
 
         <link rel="icon" href="favicon.svg">
         <link rel="shortcut icon" href="favicon.png">
@@ -32,7 +32,7 @@
         <link rel="stylesheet" href="custom.css">
 
     </head>
-    <body>
+    <body class="sidebar-visible no-js">
     <div id="body-container">
         <!-- Provide site root to javascript -->
         <script>
@@ -62,31 +62,38 @@
             try { theme = localStorage.getItem('mdbook-theme'); } catch(e) { }
             if (theme === null || theme === undefined) { theme = default_theme; }
             var html = document.querySelector('html');
-            html.classList.remove('no-js')
             html.classList.remove('ayu')
             html.classList.add(theme);
-            html.classList.add('js');
+            var body = document.querySelector('body');
+            body.classList.remove('no-js')
+            body.classList.add('js');
         </script>
 
+        <input type="checkbox" id="sidebar-toggle-anchor" class="hidden">
+
         <!-- Hide / unhide sidebar before it is displayed -->
         <script>
-            var html = document.querySelector('html');
+            var body = document.querySelector('body');
             var sidebar = null;
+            var sidebar_toggle = document.getElementById("sidebar-toggle-anchor");
             if (document.body.clientWidth >= 1080) {
                 try { sidebar = localStorage.getItem('mdbook-sidebar'); } catch(e) { }
                 sidebar = sidebar || 'visible';
             } else {
                 sidebar = 'hidden';
             }
-            html.classList.remove('sidebar-visible');
-            html.classList.add("sidebar-" + sidebar);
+            sidebar_toggle.checked = sidebar === 'visible';
+            body.classList.remove('sidebar-visible');
+            body.classList.add("sidebar-" + sidebar);
         </script>
 
         <nav id="sidebar" class="sidebar" aria-label="Table of contents">
             <div class="sidebar-scrollbox">
                 <ol class="chapter"><li class="chapter-item expanded affix "><a href="introduction.html" class="active">Intermodal</a></li><li class="chapter-item expanded "><a href="faq.html"><strong aria-hidden="true">1.</strong> FAQ</a></li><li class="chapter-item expanded "><a href="commands.html"><strong aria-hidden="true">2.</strong> Commands</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="commands/imdl.html"><strong aria-hidden="true">2.1.</strong> imdl</a></li><li class="chapter-item expanded "><a href="commands/imdl-completions.html"><strong aria-hidden="true">2.2.</strong> imdl completions</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent.html"><strong aria-hidden="true">2.3.</strong> imdl torrent</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-announce.html"><strong aria-hidden="true">2.4.</strong> imdl torrent announce</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-create.html"><strong aria-hidden="true">2.5.</strong> imdl torrent create</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-from-link.html"><strong aria-hidden="true">2.6.</strong> imdl torrent from-link</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-link.html"><strong aria-hidden="true">2.7.</strong> imdl torrent link</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-piece-length.html"><strong aria-hidden="true">2.8.</strong> imdl torrent piece-length</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-show.html"><strong aria-hidden="true">2.9.</strong> imdl torrent show</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-stats.html"><strong aria-hidden="true">2.10.</strong> imdl torrent stats</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-verify.html"><strong aria-hidden="true">2.11.</strong> imdl torrent verify</a></li></ol></li><li class="chapter-item expanded "><a href="bittorrent.html"><strong aria-hidden="true">3.</strong> Bittorrent</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="bittorrent/piece-length-selection.html"><strong aria-hidden="true">3.1.</strong> Piece Length Selection</a></li><li class="chapter-item expanded "><a href="bittorrent/bep-support.html"><strong aria-hidden="true">3.2.</strong> BEP Support</a></li><li class="chapter-item expanded "><a href="bittorrent/metainfo-utilities.html"><strong aria-hidden="true">3.3.</strong> Metainfo Utilities</a></li><li class="chapter-item expanded "><a href="bittorrent/distributing-large-data-sets.html"><strong aria-hidden="true">3.4.</strong> Distributing Large Data Sets</a></li><li class="chapter-item expanded "><a href="bittorrent/udp-tracker-protocol.html"><strong aria-hidden="true">3.5.</strong> UDP Tracker Protocol</a></li></ol></li><li class="chapter-item expanded "><a href="references.html"><strong aria-hidden="true">4.</strong> References</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="references/bittorrent.html"><strong aria-hidden="true">4.1.</strong> BitTorrent</a></li><li class="chapter-item expanded "><a href="references/metadata.html"><strong aria-hidden="true">4.2.</strong> Metadata</a></li><li class="chapter-item expanded "><a href="references/cryptography.html"><strong aria-hidden="true">4.3.</strong> Cryptography</a></li></ol></li></ol>
             </div>
-            <div id="sidebar-resize-handle" class="sidebar-resize-handle"></div>
+            <div id="sidebar-resize-handle" class="sidebar-resize-handle">
+                <div class="sidebar-resize-indicator"></div>
+            </div>
         </nav>
 
         <!-- Track and set sidebar scroll position -->
@@ -117,9 +124,9 @@
                                 <div id="menu-bar-hover-placeholder"></div>
                 <div id="menu-bar" class="menu-bar sticky">
                     <div class="left-buttons">
-                        <button id="sidebar-toggle" class="icon-button" type="button" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
+                        <label id="sidebar-toggle" class="icon-button" for="sidebar-toggle-anchor" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
                             <i class="fa fa-bars"></i>
-                        </button>
+                        </label>
                         <button id="theme-toggle" class="icon-button" type="button" title="Change theme" aria-label="Change theme" aria-haspopup="true" aria-expanded="false" aria-controls="theme-list">
                             <i class="fa fa-paint-brush"></i>
                         </button>
@@ -214,7 +221,7 @@ <h1 id="intermodal-a-40-shipping-container-for-the-internet"><a class="header" h
                     <nav class="nav-wrapper" aria-label="Page navigation">
                         <!-- Mobile navigation buttons -->
 
-                            <a rel="next" href="faq.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
+                            <a rel="next prefetch" href="faq.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
                                 <i class="fa fa-angle-right"></i>
                             </a>
 
@@ -225,7 +232,7 @@ <h1 id="intermodal-a-40-shipping-container-for-the-internet"><a class="header" h
 
             <nav class="nav-wide-wrapper" aria-label="Page navigation">
 
-                    <a rel="next" href="faq.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
+                    <a rel="next prefetch" href="faq.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
                         <i class="fa fa-angle-right"></i>
                     </a>
             </nav>
diff --git a/book/introduction.html b/book/introduction.html
index 535c52ec..a820ab9e 100644
--- a/book/introduction.html
+++ b/book/introduction.html
@@ -1,5 +1,5 @@
 <!DOCTYPE HTML>
-<html lang="en" class="sidebar-visible no-js ayu">
+<html lang="en" class="ayu" dir="ltr">
     <head>
         <!-- Book generated using mdBook -->
         <meta charset="UTF-8">
@@ -10,7 +10,7 @@
         
         <meta name="description" content="">
         <meta name="viewport" content="width=device-width, initial-scale=1">
-        <meta name="theme-color" content="#ffffff" />
+        <meta name="theme-color" content="#ffffff">
 
         <link rel="icon" href="favicon.svg">
         <link rel="shortcut icon" href="favicon.png">
@@ -32,7 +32,7 @@
         <link rel="stylesheet" href="custom.css">
 
     </head>
-    <body>
+    <body class="sidebar-visible no-js">
     <div id="body-container">
         <!-- Provide site root to javascript -->
         <script>
@@ -62,31 +62,38 @@
             try { theme = localStorage.getItem('mdbook-theme'); } catch(e) { }
             if (theme === null || theme === undefined) { theme = default_theme; }
             var html = document.querySelector('html');
-            html.classList.remove('no-js')
             html.classList.remove('ayu')
             html.classList.add(theme);
-            html.classList.add('js');
+            var body = document.querySelector('body');
+            body.classList.remove('no-js')
+            body.classList.add('js');
         </script>
 
+        <input type="checkbox" id="sidebar-toggle-anchor" class="hidden">
+
         <!-- Hide / unhide sidebar before it is displayed -->
         <script>
-            var html = document.querySelector('html');
+            var body = document.querySelector('body');
             var sidebar = null;
+            var sidebar_toggle = document.getElementById("sidebar-toggle-anchor");
             if (document.body.clientWidth >= 1080) {
                 try { sidebar = localStorage.getItem('mdbook-sidebar'); } catch(e) { }
                 sidebar = sidebar || 'visible';
             } else {
                 sidebar = 'hidden';
             }
-            html.classList.remove('sidebar-visible');
-            html.classList.add("sidebar-" + sidebar);
+            sidebar_toggle.checked = sidebar === 'visible';
+            body.classList.remove('sidebar-visible');
+            body.classList.add("sidebar-" + sidebar);
         </script>
 
         <nav id="sidebar" class="sidebar" aria-label="Table of contents">
             <div class="sidebar-scrollbox">
                 <ol class="chapter"><li class="chapter-item expanded affix "><a href="introduction.html" class="active">Intermodal</a></li><li class="chapter-item expanded "><a href="faq.html"><strong aria-hidden="true">1.</strong> FAQ</a></li><li class="chapter-item expanded "><a href="commands.html"><strong aria-hidden="true">2.</strong> Commands</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="commands/imdl.html"><strong aria-hidden="true">2.1.</strong> imdl</a></li><li class="chapter-item expanded "><a href="commands/imdl-completions.html"><strong aria-hidden="true">2.2.</strong> imdl completions</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent.html"><strong aria-hidden="true">2.3.</strong> imdl torrent</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-announce.html"><strong aria-hidden="true">2.4.</strong> imdl torrent announce</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-create.html"><strong aria-hidden="true">2.5.</strong> imdl torrent create</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-from-link.html"><strong aria-hidden="true">2.6.</strong> imdl torrent from-link</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-link.html"><strong aria-hidden="true">2.7.</strong> imdl torrent link</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-piece-length.html"><strong aria-hidden="true">2.8.</strong> imdl torrent piece-length</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-show.html"><strong aria-hidden="true">2.9.</strong> imdl torrent show</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-stats.html"><strong aria-hidden="true">2.10.</strong> imdl torrent stats</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-verify.html"><strong aria-hidden="true">2.11.</strong> imdl torrent verify</a></li></ol></li><li class="chapter-item expanded "><a href="bittorrent.html"><strong aria-hidden="true">3.</strong> Bittorrent</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="bittorrent/piece-length-selection.html"><strong aria-hidden="true">3.1.</strong> Piece Length Selection</a></li><li class="chapter-item expanded "><a href="bittorrent/bep-support.html"><strong aria-hidden="true">3.2.</strong> BEP Support</a></li><li class="chapter-item expanded "><a href="bittorrent/metainfo-utilities.html"><strong aria-hidden="true">3.3.</strong> Metainfo Utilities</a></li><li class="chapter-item expanded "><a href="bittorrent/distributing-large-data-sets.html"><strong aria-hidden="true">3.4.</strong> Distributing Large Data Sets</a></li><li class="chapter-item expanded "><a href="bittorrent/udp-tracker-protocol.html"><strong aria-hidden="true">3.5.</strong> UDP Tracker Protocol</a></li></ol></li><li class="chapter-item expanded "><a href="references.html"><strong aria-hidden="true">4.</strong> References</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="references/bittorrent.html"><strong aria-hidden="true">4.1.</strong> BitTorrent</a></li><li class="chapter-item expanded "><a href="references/metadata.html"><strong aria-hidden="true">4.2.</strong> Metadata</a></li><li class="chapter-item expanded "><a href="references/cryptography.html"><strong aria-hidden="true">4.3.</strong> Cryptography</a></li></ol></li></ol>
             </div>
-            <div id="sidebar-resize-handle" class="sidebar-resize-handle"></div>
+            <div id="sidebar-resize-handle" class="sidebar-resize-handle">
+                <div class="sidebar-resize-indicator"></div>
+            </div>
         </nav>
 
         <!-- Track and set sidebar scroll position -->
@@ -117,9 +124,9 @@
                                 <div id="menu-bar-hover-placeholder"></div>
                 <div id="menu-bar" class="menu-bar sticky">
                     <div class="left-buttons">
-                        <button id="sidebar-toggle" class="icon-button" type="button" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
+                        <label id="sidebar-toggle" class="icon-button" for="sidebar-toggle-anchor" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
                             <i class="fa fa-bars"></i>
-                        </button>
+                        </label>
                         <button id="theme-toggle" class="icon-button" type="button" title="Change theme" aria-label="Change theme" aria-haspopup="true" aria-expanded="false" aria-controls="theme-list">
                             <i class="fa fa-paint-brush"></i>
                         </button>
@@ -214,7 +221,7 @@ <h1 id="intermodal-a-40-shipping-container-for-the-internet"><a class="header" h
                     <nav class="nav-wrapper" aria-label="Page navigation">
                         <!-- Mobile navigation buttons -->
 
-                            <a rel="next" href="faq.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
+                            <a rel="next prefetch" href="faq.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
                                 <i class="fa fa-angle-right"></i>
                             </a>
 
@@ -225,7 +232,7 @@ <h1 id="intermodal-a-40-shipping-container-for-the-internet"><a class="header" h
 
             <nav class="nav-wide-wrapper" aria-label="Page navigation">
 
-                    <a rel="next" href="faq.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
+                    <a rel="next prefetch" href="faq.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
                         <i class="fa fa-angle-right"></i>
                     </a>
             </nav>
diff --git a/book/print.html b/book/print.html
index e7b1802e..8bd52bf8 100644
--- a/book/print.html
+++ b/book/print.html
@@ -1,17 +1,17 @@
 <!DOCTYPE HTML>
-<html lang="en" class="sidebar-visible no-js ayu">
+<html lang="en" class="ayu" dir="ltr">
     <head>
         <!-- Book generated using mdBook -->
         <meta charset="UTF-8">
         <title>Intermodal</title>
-        <meta name="robots" content="noindex" />
+        <meta name="robots" content="noindex">
 
 
         <!-- Custom HTML head -->
         
         <meta name="description" content="">
         <meta name="viewport" content="width=device-width, initial-scale=1">
-        <meta name="theme-color" content="#ffffff" />
+        <meta name="theme-color" content="#ffffff">
 
         <link rel="icon" href="favicon.svg">
         <link rel="shortcut icon" href="favicon.png">
@@ -33,7 +33,7 @@
         <link rel="stylesheet" href="custom.css">
 
     </head>
-    <body>
+    <body class="sidebar-visible no-js">
     <div id="body-container">
         <!-- Provide site root to javascript -->
         <script>
@@ -63,31 +63,38 @@
             try { theme = localStorage.getItem('mdbook-theme'); } catch(e) { }
             if (theme === null || theme === undefined) { theme = default_theme; }
             var html = document.querySelector('html');
-            html.classList.remove('no-js')
             html.classList.remove('ayu')
             html.classList.add(theme);
-            html.classList.add('js');
+            var body = document.querySelector('body');
+            body.classList.remove('no-js')
+            body.classList.add('js');
         </script>
 
+        <input type="checkbox" id="sidebar-toggle-anchor" class="hidden">
+
         <!-- Hide / unhide sidebar before it is displayed -->
         <script>
-            var html = document.querySelector('html');
+            var body = document.querySelector('body');
             var sidebar = null;
+            var sidebar_toggle = document.getElementById("sidebar-toggle-anchor");
             if (document.body.clientWidth >= 1080) {
                 try { sidebar = localStorage.getItem('mdbook-sidebar'); } catch(e) { }
                 sidebar = sidebar || 'visible';
             } else {
                 sidebar = 'hidden';
             }
-            html.classList.remove('sidebar-visible');
-            html.classList.add("sidebar-" + sidebar);
+            sidebar_toggle.checked = sidebar === 'visible';
+            body.classList.remove('sidebar-visible');
+            body.classList.add("sidebar-" + sidebar);
         </script>
 
         <nav id="sidebar" class="sidebar" aria-label="Table of contents">
             <div class="sidebar-scrollbox">
                 <ol class="chapter"><li class="chapter-item expanded affix "><a href="introduction.html">Intermodal</a></li><li class="chapter-item expanded "><a href="faq.html"><strong aria-hidden="true">1.</strong> FAQ</a></li><li class="chapter-item expanded "><a href="commands.html"><strong aria-hidden="true">2.</strong> Commands</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="commands/imdl.html"><strong aria-hidden="true">2.1.</strong> imdl</a></li><li class="chapter-item expanded "><a href="commands/imdl-completions.html"><strong aria-hidden="true">2.2.</strong> imdl completions</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent.html"><strong aria-hidden="true">2.3.</strong> imdl torrent</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-announce.html"><strong aria-hidden="true">2.4.</strong> imdl torrent announce</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-create.html"><strong aria-hidden="true">2.5.</strong> imdl torrent create</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-from-link.html"><strong aria-hidden="true">2.6.</strong> imdl torrent from-link</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-link.html"><strong aria-hidden="true">2.7.</strong> imdl torrent link</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-piece-length.html"><strong aria-hidden="true">2.8.</strong> imdl torrent piece-length</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-show.html"><strong aria-hidden="true">2.9.</strong> imdl torrent show</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-stats.html"><strong aria-hidden="true">2.10.</strong> imdl torrent stats</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-verify.html"><strong aria-hidden="true">2.11.</strong> imdl torrent verify</a></li></ol></li><li class="chapter-item expanded "><a href="bittorrent.html"><strong aria-hidden="true">3.</strong> Bittorrent</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="bittorrent/piece-length-selection.html"><strong aria-hidden="true">3.1.</strong> Piece Length Selection</a></li><li class="chapter-item expanded "><a href="bittorrent/bep-support.html"><strong aria-hidden="true">3.2.</strong> BEP Support</a></li><li class="chapter-item expanded "><a href="bittorrent/metainfo-utilities.html"><strong aria-hidden="true">3.3.</strong> Metainfo Utilities</a></li><li class="chapter-item expanded "><a href="bittorrent/distributing-large-data-sets.html"><strong aria-hidden="true">3.4.</strong> Distributing Large Data Sets</a></li><li class="chapter-item expanded "><a href="bittorrent/udp-tracker-protocol.html"><strong aria-hidden="true">3.5.</strong> UDP Tracker Protocol</a></li></ol></li><li class="chapter-item expanded "><a href="references.html"><strong aria-hidden="true">4.</strong> References</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="references/bittorrent.html"><strong aria-hidden="true">4.1.</strong> BitTorrent</a></li><li class="chapter-item expanded "><a href="references/metadata.html"><strong aria-hidden="true">4.2.</strong> Metadata</a></li><li class="chapter-item expanded "><a href="references/cryptography.html"><strong aria-hidden="true">4.3.</strong> Cryptography</a></li></ol></li></ol>
             </div>
-            <div id="sidebar-resize-handle" class="sidebar-resize-handle"></div>
+            <div id="sidebar-resize-handle" class="sidebar-resize-handle">
+                <div class="sidebar-resize-indicator"></div>
+            </div>
         </nav>
 
         <!-- Track and set sidebar scroll position -->
@@ -118,9 +125,9 @@
                                 <div id="menu-bar-hover-placeholder"></div>
                 <div id="menu-bar" class="menu-bar sticky">
                     <div class="left-buttons">
-                        <button id="sidebar-toggle" class="icon-button" type="button" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
+                        <label id="sidebar-toggle" class="icon-button" for="sidebar-toggle-anchor" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
                             <i class="fa fa-bars"></i>
-                        </button>
+                        </label>
                         <button id="theme-toggle" class="icon-button" type="button" title="Change theme" aria-label="Change theme" aria-haspopup="true" aria-expanded="false" aria-controls="theme-list">
                             <i class="fa fa-paint-brush"></i>
                         </button>
diff --git a/book/references.html b/book/references.html
index fc97c6c0..c17d4cf6 100644
--- a/book/references.html
+++ b/book/references.html
@@ -1,5 +1,5 @@
 <!DOCTYPE HTML>
-<html lang="en" class="sidebar-visible no-js ayu">
+<html lang="en" class="ayu" dir="ltr">
     <head>
         <!-- Book generated using mdBook -->
         <meta charset="UTF-8">
@@ -10,7 +10,7 @@
         
         <meta name="description" content="">
         <meta name="viewport" content="width=device-width, initial-scale=1">
-        <meta name="theme-color" content="#ffffff" />
+        <meta name="theme-color" content="#ffffff">
 
         <link rel="icon" href="favicon.svg">
         <link rel="shortcut icon" href="favicon.png">
@@ -32,7 +32,7 @@
         <link rel="stylesheet" href="custom.css">
 
     </head>
-    <body>
+    <body class="sidebar-visible no-js">
     <div id="body-container">
         <!-- Provide site root to javascript -->
         <script>
@@ -62,31 +62,38 @@
             try { theme = localStorage.getItem('mdbook-theme'); } catch(e) { }
             if (theme === null || theme === undefined) { theme = default_theme; }
             var html = document.querySelector('html');
-            html.classList.remove('no-js')
             html.classList.remove('ayu')
             html.classList.add(theme);
-            html.classList.add('js');
+            var body = document.querySelector('body');
+            body.classList.remove('no-js')
+            body.classList.add('js');
         </script>
 
+        <input type="checkbox" id="sidebar-toggle-anchor" class="hidden">
+
         <!-- Hide / unhide sidebar before it is displayed -->
         <script>
-            var html = document.querySelector('html');
+            var body = document.querySelector('body');
             var sidebar = null;
+            var sidebar_toggle = document.getElementById("sidebar-toggle-anchor");
             if (document.body.clientWidth >= 1080) {
                 try { sidebar = localStorage.getItem('mdbook-sidebar'); } catch(e) { }
                 sidebar = sidebar || 'visible';
             } else {
                 sidebar = 'hidden';
             }
-            html.classList.remove('sidebar-visible');
-            html.classList.add("sidebar-" + sidebar);
+            sidebar_toggle.checked = sidebar === 'visible';
+            body.classList.remove('sidebar-visible');
+            body.classList.add("sidebar-" + sidebar);
         </script>
 
         <nav id="sidebar" class="sidebar" aria-label="Table of contents">
             <div class="sidebar-scrollbox">
                 <ol class="chapter"><li class="chapter-item expanded affix "><a href="introduction.html">Intermodal</a></li><li class="chapter-item expanded "><a href="faq.html"><strong aria-hidden="true">1.</strong> FAQ</a></li><li class="chapter-item expanded "><a href="commands.html"><strong aria-hidden="true">2.</strong> Commands</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="commands/imdl.html"><strong aria-hidden="true">2.1.</strong> imdl</a></li><li class="chapter-item expanded "><a href="commands/imdl-completions.html"><strong aria-hidden="true">2.2.</strong> imdl completions</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent.html"><strong aria-hidden="true">2.3.</strong> imdl torrent</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-announce.html"><strong aria-hidden="true">2.4.</strong> imdl torrent announce</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-create.html"><strong aria-hidden="true">2.5.</strong> imdl torrent create</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-from-link.html"><strong aria-hidden="true">2.6.</strong> imdl torrent from-link</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-link.html"><strong aria-hidden="true">2.7.</strong> imdl torrent link</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-piece-length.html"><strong aria-hidden="true">2.8.</strong> imdl torrent piece-length</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-show.html"><strong aria-hidden="true">2.9.</strong> imdl torrent show</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-stats.html"><strong aria-hidden="true">2.10.</strong> imdl torrent stats</a></li><li class="chapter-item expanded "><a href="commands/imdl-torrent-verify.html"><strong aria-hidden="true">2.11.</strong> imdl torrent verify</a></li></ol></li><li class="chapter-item expanded "><a href="bittorrent.html"><strong aria-hidden="true">3.</strong> Bittorrent</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="bittorrent/piece-length-selection.html"><strong aria-hidden="true">3.1.</strong> Piece Length Selection</a></li><li class="chapter-item expanded "><a href="bittorrent/bep-support.html"><strong aria-hidden="true">3.2.</strong> BEP Support</a></li><li class="chapter-item expanded "><a href="bittorrent/metainfo-utilities.html"><strong aria-hidden="true">3.3.</strong> Metainfo Utilities</a></li><li class="chapter-item expanded "><a href="bittorrent/distributing-large-data-sets.html"><strong aria-hidden="true">3.4.</strong> Distributing Large Data Sets</a></li><li class="chapter-item expanded "><a href="bittorrent/udp-tracker-protocol.html"><strong aria-hidden="true">3.5.</strong> UDP Tracker Protocol</a></li></ol></li><li class="chapter-item expanded "><a href="references.html" class="active"><strong aria-hidden="true">4.</strong> References</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="references/bittorrent.html"><strong aria-hidden="true">4.1.</strong> BitTorrent</a></li><li class="chapter-item expanded "><a href="references/metadata.html"><strong aria-hidden="true">4.2.</strong> Metadata</a></li><li class="chapter-item expanded "><a href="references/cryptography.html"><strong aria-hidden="true">4.3.</strong> Cryptography</a></li></ol></li></ol>
             </div>
-            <div id="sidebar-resize-handle" class="sidebar-resize-handle"></div>
+            <div id="sidebar-resize-handle" class="sidebar-resize-handle">
+                <div class="sidebar-resize-indicator"></div>
+            </div>
         </nav>
 
         <!-- Track and set sidebar scroll position -->
@@ -117,9 +124,9 @@
                                 <div id="menu-bar-hover-placeholder"></div>
                 <div id="menu-bar" class="menu-bar sticky">
                     <div class="left-buttons">
-                        <button id="sidebar-toggle" class="icon-button" type="button" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
+                        <label id="sidebar-toggle" class="icon-button" for="sidebar-toggle-anchor" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
                             <i class="fa fa-bars"></i>
-                        </button>
+                        </label>
                         <button id="theme-toggle" class="icon-button" type="button" title="Change theme" aria-label="Change theme" aria-haspopup="true" aria-expanded="false" aria-controls="theme-list">
                             <i class="fa fa-paint-brush"></i>
                         </button>
@@ -181,7 +188,7 @@ <h1 id="references"><a class="header" href="#references">References</a></h1>
                                 <i class="fa fa-angle-left"></i>
                             </a>
 
-                            <a rel="next" href="references/bittorrent.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
+                            <a rel="next prefetch" href="references/bittorrent.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
                                 <i class="fa fa-angle-right"></i>
                             </a>
 
@@ -195,7 +202,7 @@ <h1 id="references"><a class="header" href="#references">References</a></h1>
                         <i class="fa fa-angle-left"></i>
                     </a>
 
-                    <a rel="next" href="references/bittorrent.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
+                    <a rel="next prefetch" href="references/bittorrent.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
                         <i class="fa fa-angle-right"></i>
                     </a>
             </nav>
diff --git a/book/references/bittorrent.html b/book/references/bittorrent.html
index c58b2cf4..5e50aba1 100644
--- a/book/references/bittorrent.html
+++ b/book/references/bittorrent.html
@@ -1,5 +1,5 @@
 <!DOCTYPE HTML>
-<html lang="en" class="sidebar-visible no-js ayu">
+<html lang="en" class="ayu" dir="ltr">
     <head>
         <!-- Book generated using mdBook -->
         <meta charset="UTF-8">
@@ -10,7 +10,7 @@
         
         <meta name="description" content="">
         <meta name="viewport" content="width=device-width, initial-scale=1">
-        <meta name="theme-color" content="#ffffff" />
+        <meta name="theme-color" content="#ffffff">
 
         <link rel="icon" href="../favicon.svg">
         <link rel="shortcut icon" href="../favicon.png">
@@ -32,7 +32,7 @@
         <link rel="stylesheet" href="../custom.css">
 
     </head>
-    <body>
+    <body class="sidebar-visible no-js">
     <div id="body-container">
         <!-- Provide site root to javascript -->
         <script>
@@ -62,31 +62,38 @@
             try { theme = localStorage.getItem('mdbook-theme'); } catch(e) { }
             if (theme === null || theme === undefined) { theme = default_theme; }
             var html = document.querySelector('html');
-            html.classList.remove('no-js')
             html.classList.remove('ayu')
             html.classList.add(theme);
-            html.classList.add('js');
+            var body = document.querySelector('body');
+            body.classList.remove('no-js')
+            body.classList.add('js');
         </script>
 
+        <input type="checkbox" id="sidebar-toggle-anchor" class="hidden">
+
         <!-- Hide / unhide sidebar before it is displayed -->
         <script>
-            var html = document.querySelector('html');
+            var body = document.querySelector('body');
             var sidebar = null;
+            var sidebar_toggle = document.getElementById("sidebar-toggle-anchor");
             if (document.body.clientWidth >= 1080) {
                 try { sidebar = localStorage.getItem('mdbook-sidebar'); } catch(e) { }
                 sidebar = sidebar || 'visible';
             } else {
                 sidebar = 'hidden';
             }
-            html.classList.remove('sidebar-visible');
-            html.classList.add("sidebar-" + sidebar);
+            sidebar_toggle.checked = sidebar === 'visible';
+            body.classList.remove('sidebar-visible');
+            body.classList.add("sidebar-" + sidebar);
         </script>
 
         <nav id="sidebar" class="sidebar" aria-label="Table of contents">
             <div class="sidebar-scrollbox">
                 <ol class="chapter"><li class="chapter-item expanded affix "><a href="../introduction.html">Intermodal</a></li><li class="chapter-item expanded "><a href="../faq.html"><strong aria-hidden="true">1.</strong> FAQ</a></li><li class="chapter-item expanded "><a href="../commands.html"><strong aria-hidden="true">2.</strong> Commands</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../commands/imdl.html"><strong aria-hidden="true">2.1.</strong> imdl</a></li><li class="chapter-item expanded "><a href="../commands/imdl-completions.html"><strong aria-hidden="true">2.2.</strong> imdl completions</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent.html"><strong aria-hidden="true">2.3.</strong> imdl torrent</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-announce.html"><strong aria-hidden="true">2.4.</strong> imdl torrent announce</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-create.html"><strong aria-hidden="true">2.5.</strong> imdl torrent create</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-from-link.html"><strong aria-hidden="true">2.6.</strong> imdl torrent from-link</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-link.html"><strong aria-hidden="true">2.7.</strong> imdl torrent link</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-piece-length.html"><strong aria-hidden="true">2.8.</strong> imdl torrent piece-length</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-show.html"><strong aria-hidden="true">2.9.</strong> imdl torrent show</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-stats.html"><strong aria-hidden="true">2.10.</strong> imdl torrent stats</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-verify.html"><strong aria-hidden="true">2.11.</strong> imdl torrent verify</a></li></ol></li><li class="chapter-item expanded "><a href="../bittorrent.html"><strong aria-hidden="true">3.</strong> Bittorrent</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../bittorrent/piece-length-selection.html"><strong aria-hidden="true">3.1.</strong> Piece Length Selection</a></li><li class="chapter-item expanded "><a href="../bittorrent/bep-support.html"><strong aria-hidden="true">3.2.</strong> BEP Support</a></li><li class="chapter-item expanded "><a href="../bittorrent/metainfo-utilities.html"><strong aria-hidden="true">3.3.</strong> Metainfo Utilities</a></li><li class="chapter-item expanded "><a href="../bittorrent/distributing-large-data-sets.html"><strong aria-hidden="true">3.4.</strong> Distributing Large Data Sets</a></li><li class="chapter-item expanded "><a href="../bittorrent/udp-tracker-protocol.html"><strong aria-hidden="true">3.5.</strong> UDP Tracker Protocol</a></li></ol></li><li class="chapter-item expanded "><a href="../references.html"><strong aria-hidden="true">4.</strong> References</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../references/bittorrent.html" class="active"><strong aria-hidden="true">4.1.</strong> BitTorrent</a></li><li class="chapter-item expanded "><a href="../references/metadata.html"><strong aria-hidden="true">4.2.</strong> Metadata</a></li><li class="chapter-item expanded "><a href="../references/cryptography.html"><strong aria-hidden="true">4.3.</strong> Cryptography</a></li></ol></li></ol>
             </div>
-            <div id="sidebar-resize-handle" class="sidebar-resize-handle"></div>
+            <div id="sidebar-resize-handle" class="sidebar-resize-handle">
+                <div class="sidebar-resize-indicator"></div>
+            </div>
         </nav>
 
         <!-- Track and set sidebar scroll position -->
@@ -117,9 +124,9 @@
                                 <div id="menu-bar-hover-placeholder"></div>
                 <div id="menu-bar" class="menu-bar sticky">
                     <div class="left-buttons">
-                        <button id="sidebar-toggle" class="icon-button" type="button" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
+                        <label id="sidebar-toggle" class="icon-button" for="sidebar-toggle-anchor" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
                             <i class="fa fa-bars"></i>
-                        </button>
+                        </label>
                         <button id="theme-toggle" class="icon-button" type="button" title="Change theme" aria-label="Change theme" aria-haspopup="true" aria-expanded="false" aria-controls="theme-list">
                             <i class="fa fa-paint-brush"></i>
                         </button>
@@ -200,7 +207,7 @@ <h1 id="bittorrent"><a class="header" href="#bittorrent">BitTorrent</a></h1>
                                 <i class="fa fa-angle-left"></i>
                             </a>
 
-                            <a rel="next" href="../references/metadata.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
+                            <a rel="next prefetch" href="../references/metadata.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
                                 <i class="fa fa-angle-right"></i>
                             </a>
 
@@ -214,7 +221,7 @@ <h1 id="bittorrent"><a class="header" href="#bittorrent">BitTorrent</a></h1>
                         <i class="fa fa-angle-left"></i>
                     </a>
 
-                    <a rel="next" href="../references/metadata.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
+                    <a rel="next prefetch" href="../references/metadata.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
                         <i class="fa fa-angle-right"></i>
                     </a>
             </nav>
diff --git a/book/references/cryptography.html b/book/references/cryptography.html
index 4aad751a..d505bc78 100644
--- a/book/references/cryptography.html
+++ b/book/references/cryptography.html
@@ -1,5 +1,5 @@
 <!DOCTYPE HTML>
-<html lang="en" class="sidebar-visible no-js ayu">
+<html lang="en" class="ayu" dir="ltr">
     <head>
         <!-- Book generated using mdBook -->
         <meta charset="UTF-8">
@@ -10,7 +10,7 @@
         
         <meta name="description" content="">
         <meta name="viewport" content="width=device-width, initial-scale=1">
-        <meta name="theme-color" content="#ffffff" />
+        <meta name="theme-color" content="#ffffff">
 
         <link rel="icon" href="../favicon.svg">
         <link rel="shortcut icon" href="../favicon.png">
@@ -32,7 +32,7 @@
         <link rel="stylesheet" href="../custom.css">
 
     </head>
-    <body>
+    <body class="sidebar-visible no-js">
     <div id="body-container">
         <!-- Provide site root to javascript -->
         <script>
@@ -62,31 +62,38 @@
             try { theme = localStorage.getItem('mdbook-theme'); } catch(e) { }
             if (theme === null || theme === undefined) { theme = default_theme; }
             var html = document.querySelector('html');
-            html.classList.remove('no-js')
             html.classList.remove('ayu')
             html.classList.add(theme);
-            html.classList.add('js');
+            var body = document.querySelector('body');
+            body.classList.remove('no-js')
+            body.classList.add('js');
         </script>
 
+        <input type="checkbox" id="sidebar-toggle-anchor" class="hidden">
+
         <!-- Hide / unhide sidebar before it is displayed -->
         <script>
-            var html = document.querySelector('html');
+            var body = document.querySelector('body');
             var sidebar = null;
+            var sidebar_toggle = document.getElementById("sidebar-toggle-anchor");
             if (document.body.clientWidth >= 1080) {
                 try { sidebar = localStorage.getItem('mdbook-sidebar'); } catch(e) { }
                 sidebar = sidebar || 'visible';
             } else {
                 sidebar = 'hidden';
             }
-            html.classList.remove('sidebar-visible');
-            html.classList.add("sidebar-" + sidebar);
+            sidebar_toggle.checked = sidebar === 'visible';
+            body.classList.remove('sidebar-visible');
+            body.classList.add("sidebar-" + sidebar);
         </script>
 
         <nav id="sidebar" class="sidebar" aria-label="Table of contents">
             <div class="sidebar-scrollbox">
                 <ol class="chapter"><li class="chapter-item expanded affix "><a href="../introduction.html">Intermodal</a></li><li class="chapter-item expanded "><a href="../faq.html"><strong aria-hidden="true">1.</strong> FAQ</a></li><li class="chapter-item expanded "><a href="../commands.html"><strong aria-hidden="true">2.</strong> Commands</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../commands/imdl.html"><strong aria-hidden="true">2.1.</strong> imdl</a></li><li class="chapter-item expanded "><a href="../commands/imdl-completions.html"><strong aria-hidden="true">2.2.</strong> imdl completions</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent.html"><strong aria-hidden="true">2.3.</strong> imdl torrent</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-announce.html"><strong aria-hidden="true">2.4.</strong> imdl torrent announce</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-create.html"><strong aria-hidden="true">2.5.</strong> imdl torrent create</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-from-link.html"><strong aria-hidden="true">2.6.</strong> imdl torrent from-link</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-link.html"><strong aria-hidden="true">2.7.</strong> imdl torrent link</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-piece-length.html"><strong aria-hidden="true">2.8.</strong> imdl torrent piece-length</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-show.html"><strong aria-hidden="true">2.9.</strong> imdl torrent show</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-stats.html"><strong aria-hidden="true">2.10.</strong> imdl torrent stats</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-verify.html"><strong aria-hidden="true">2.11.</strong> imdl torrent verify</a></li></ol></li><li class="chapter-item expanded "><a href="../bittorrent.html"><strong aria-hidden="true">3.</strong> Bittorrent</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../bittorrent/piece-length-selection.html"><strong aria-hidden="true">3.1.</strong> Piece Length Selection</a></li><li class="chapter-item expanded "><a href="../bittorrent/bep-support.html"><strong aria-hidden="true">3.2.</strong> BEP Support</a></li><li class="chapter-item expanded "><a href="../bittorrent/metainfo-utilities.html"><strong aria-hidden="true">3.3.</strong> Metainfo Utilities</a></li><li class="chapter-item expanded "><a href="../bittorrent/distributing-large-data-sets.html"><strong aria-hidden="true">3.4.</strong> Distributing Large Data Sets</a></li><li class="chapter-item expanded "><a href="../bittorrent/udp-tracker-protocol.html"><strong aria-hidden="true">3.5.</strong> UDP Tracker Protocol</a></li></ol></li><li class="chapter-item expanded "><a href="../references.html"><strong aria-hidden="true">4.</strong> References</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../references/bittorrent.html"><strong aria-hidden="true">4.1.</strong> BitTorrent</a></li><li class="chapter-item expanded "><a href="../references/metadata.html"><strong aria-hidden="true">4.2.</strong> Metadata</a></li><li class="chapter-item expanded "><a href="../references/cryptography.html" class="active"><strong aria-hidden="true">4.3.</strong> Cryptography</a></li></ol></li></ol>
             </div>
-            <div id="sidebar-resize-handle" class="sidebar-resize-handle"></div>
+            <div id="sidebar-resize-handle" class="sidebar-resize-handle">
+                <div class="sidebar-resize-indicator"></div>
+            </div>
         </nav>
 
         <!-- Track and set sidebar scroll position -->
@@ -117,9 +124,9 @@
                                 <div id="menu-bar-hover-placeholder"></div>
                 <div id="menu-bar" class="menu-bar sticky">
                     <div class="left-buttons">
-                        <button id="sidebar-toggle" class="icon-button" type="button" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
+                        <label id="sidebar-toggle" class="icon-button" for="sidebar-toggle-anchor" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
                             <i class="fa fa-bars"></i>
-                        </button>
+                        </label>
                         <button id="theme-toggle" class="icon-button" type="button" title="Change theme" aria-label="Change theme" aria-haspopup="true" aria-expanded="false" aria-controls="theme-list">
                             <i class="fa fa-paint-brush"></i>
                         </button>
diff --git a/book/references/metadata.html b/book/references/metadata.html
index bb885bbb..67d7267c 100644
--- a/book/references/metadata.html
+++ b/book/references/metadata.html
@@ -1,5 +1,5 @@
 <!DOCTYPE HTML>
-<html lang="en" class="sidebar-visible no-js ayu">
+<html lang="en" class="ayu" dir="ltr">
     <head>
         <!-- Book generated using mdBook -->
         <meta charset="UTF-8">
@@ -10,7 +10,7 @@
         
         <meta name="description" content="">
         <meta name="viewport" content="width=device-width, initial-scale=1">
-        <meta name="theme-color" content="#ffffff" />
+        <meta name="theme-color" content="#ffffff">
 
         <link rel="icon" href="../favicon.svg">
         <link rel="shortcut icon" href="../favicon.png">
@@ -32,7 +32,7 @@
         <link rel="stylesheet" href="../custom.css">
 
     </head>
-    <body>
+    <body class="sidebar-visible no-js">
     <div id="body-container">
         <!-- Provide site root to javascript -->
         <script>
@@ -62,31 +62,38 @@
             try { theme = localStorage.getItem('mdbook-theme'); } catch(e) { }
             if (theme === null || theme === undefined) { theme = default_theme; }
             var html = document.querySelector('html');
-            html.classList.remove('no-js')
             html.classList.remove('ayu')
             html.classList.add(theme);
-            html.classList.add('js');
+            var body = document.querySelector('body');
+            body.classList.remove('no-js')
+            body.classList.add('js');
         </script>
 
+        <input type="checkbox" id="sidebar-toggle-anchor" class="hidden">
+
         <!-- Hide / unhide sidebar before it is displayed -->
         <script>
-            var html = document.querySelector('html');
+            var body = document.querySelector('body');
             var sidebar = null;
+            var sidebar_toggle = document.getElementById("sidebar-toggle-anchor");
             if (document.body.clientWidth >= 1080) {
                 try { sidebar = localStorage.getItem('mdbook-sidebar'); } catch(e) { }
                 sidebar = sidebar || 'visible';
             } else {
                 sidebar = 'hidden';
             }
-            html.classList.remove('sidebar-visible');
-            html.classList.add("sidebar-" + sidebar);
+            sidebar_toggle.checked = sidebar === 'visible';
+            body.classList.remove('sidebar-visible');
+            body.classList.add("sidebar-" + sidebar);
         </script>
 
         <nav id="sidebar" class="sidebar" aria-label="Table of contents">
             <div class="sidebar-scrollbox">
                 <ol class="chapter"><li class="chapter-item expanded affix "><a href="../introduction.html">Intermodal</a></li><li class="chapter-item expanded "><a href="../faq.html"><strong aria-hidden="true">1.</strong> FAQ</a></li><li class="chapter-item expanded "><a href="../commands.html"><strong aria-hidden="true">2.</strong> Commands</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../commands/imdl.html"><strong aria-hidden="true">2.1.</strong> imdl</a></li><li class="chapter-item expanded "><a href="../commands/imdl-completions.html"><strong aria-hidden="true">2.2.</strong> imdl completions</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent.html"><strong aria-hidden="true">2.3.</strong> imdl torrent</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-announce.html"><strong aria-hidden="true">2.4.</strong> imdl torrent announce</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-create.html"><strong aria-hidden="true">2.5.</strong> imdl torrent create</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-from-link.html"><strong aria-hidden="true">2.6.</strong> imdl torrent from-link</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-link.html"><strong aria-hidden="true">2.7.</strong> imdl torrent link</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-piece-length.html"><strong aria-hidden="true">2.8.</strong> imdl torrent piece-length</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-show.html"><strong aria-hidden="true">2.9.</strong> imdl torrent show</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-stats.html"><strong aria-hidden="true">2.10.</strong> imdl torrent stats</a></li><li class="chapter-item expanded "><a href="../commands/imdl-torrent-verify.html"><strong aria-hidden="true">2.11.</strong> imdl torrent verify</a></li></ol></li><li class="chapter-item expanded "><a href="../bittorrent.html"><strong aria-hidden="true">3.</strong> Bittorrent</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../bittorrent/piece-length-selection.html"><strong aria-hidden="true">3.1.</strong> Piece Length Selection</a></li><li class="chapter-item expanded "><a href="../bittorrent/bep-support.html"><strong aria-hidden="true">3.2.</strong> BEP Support</a></li><li class="chapter-item expanded "><a href="../bittorrent/metainfo-utilities.html"><strong aria-hidden="true">3.3.</strong> Metainfo Utilities</a></li><li class="chapter-item expanded "><a href="../bittorrent/distributing-large-data-sets.html"><strong aria-hidden="true">3.4.</strong> Distributing Large Data Sets</a></li><li class="chapter-item expanded "><a href="../bittorrent/udp-tracker-protocol.html"><strong aria-hidden="true">3.5.</strong> UDP Tracker Protocol</a></li></ol></li><li class="chapter-item expanded "><a href="../references.html"><strong aria-hidden="true">4.</strong> References</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../references/bittorrent.html"><strong aria-hidden="true">4.1.</strong> BitTorrent</a></li><li class="chapter-item expanded "><a href="../references/metadata.html" class="active"><strong aria-hidden="true">4.2.</strong> Metadata</a></li><li class="chapter-item expanded "><a href="../references/cryptography.html"><strong aria-hidden="true">4.3.</strong> Cryptography</a></li></ol></li></ol>
             </div>
-            <div id="sidebar-resize-handle" class="sidebar-resize-handle"></div>
+            <div id="sidebar-resize-handle" class="sidebar-resize-handle">
+                <div class="sidebar-resize-indicator"></div>
+            </div>
         </nav>
 
         <!-- Track and set sidebar scroll position -->
@@ -117,9 +124,9 @@
                                 <div id="menu-bar-hover-placeholder"></div>
                 <div id="menu-bar" class="menu-bar sticky">
                     <div class="left-buttons">
-                        <button id="sidebar-toggle" class="icon-button" type="button" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
+                        <label id="sidebar-toggle" class="icon-button" for="sidebar-toggle-anchor" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
                             <i class="fa fa-bars"></i>
-                        </button>
+                        </label>
                         <button id="theme-toggle" class="icon-button" type="button" title="Change theme" aria-label="Change theme" aria-haspopup="true" aria-expanded="false" aria-controls="theme-list">
                             <i class="fa fa-paint-brush"></i>
                         </button>
@@ -183,7 +190,7 @@ <h1 id="metadata"><a class="header" href="#metadata">Metadata</a></h1>
                                 <i class="fa fa-angle-left"></i>
                             </a>
 
-                            <a rel="next" href="../references/cryptography.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
+                            <a rel="next prefetch" href="../references/cryptography.html" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
                                 <i class="fa fa-angle-right"></i>
                             </a>
 
@@ -197,7 +204,7 @@ <h1 id="metadata"><a class="header" href="#metadata">Metadata</a></h1>
                         <i class="fa fa-angle-left"></i>
                     </a>
 
-                    <a rel="next" href="../references/cryptography.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
+                    <a rel="next prefetch" href="../references/cryptography.html" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
                         <i class="fa fa-angle-right"></i>
                     </a>
             </nav>
diff --git a/head.txt b/head.txt
index 2f4756b7..ec37ddad 100644
--- a/head.txt
+++ b/head.txt
@@ -1 +1 @@
-68012b1408778263c6a1aa27fa60729c1d125d4d
+f812bf6afb09e03e50e88700062347843afa7e58
