diff --git a/styles/ember.json b/styles/ember.json
index a913bcad..a7eb7a4f 100644
--- a/styles/ember.json
+++ b/styles/ember.json
@@ -149,6 +149,16 @@
 					"fontFamily": "\"Jost\", sans-serif",
 					"name": "Jost",
 					"slug": "heading"
+				},
+				{
+					"fontFamily": "-apple-system, BlinkMacSystemFont, avenir next, avenir, segoe ui, helvetica neue, helvetica, Cantarell, Ubuntu, roboto, noto, arial, sans-serif",
+					"name": "System Sans-serif",
+					"slug": "system-sans-serif"
+				},
+				{
+					"fontFamily": "Iowan Old Style, Apple Garamond, Baskerville, Times New Roman, Droid Serif, Times, Source Serif Pro, serif, Apple Color Emoji, Segoe UI Emoji, Segoe UI Symbol",
+					"name": "System Serif",
+					"slug": "system-serif"
 				}
 			]
 		}
diff --git a/styles/fossil.json b/styles/fossil.json
index 2ed84c55..41950f84 100644
--- a/styles/fossil.json
+++ b/styles/fossil.json
@@ -141,6 +141,16 @@
 					"fontFamily": "Cardo",
 					"name": "Cardo",
 					"slug": "body"
+				},
+				{
+					"fontFamily": "-apple-system, BlinkMacSystemFont, avenir next, avenir, segoe ui, helvetica neue, helvetica, Cantarell, Ubuntu, roboto, noto, arial, sans-serif",
+					"name": "System Sans-serif",
+					"slug": "system-sans-serif"
+				},
+				{
+					"fontFamily": "Iowan Old Style, Apple Garamond, Baskerville, Times New Roman, Droid Serif, Times, Source Serif Pro, serif, Apple Color Emoji, Segoe UI Emoji, Segoe UI Symbol",
+					"name": "System Serif",
+					"slug": "system-serif"
 				}
 			],
 			"fontSizes": [
diff --git a/styles/ice.json b/styles/ice.json
index eb8bfdae..482b65bf 100644
--- a/styles/ice.json
+++ b/styles/ice.json
@@ -137,6 +137,16 @@
 					"fontFamily": "\"Jost\", sans-serif",
 					"name": "Jost",
 					"slug": "body"
+				},
+				{
+					"fontFamily": "-apple-system, BlinkMacSystemFont, avenir next, avenir, segoe ui, helvetica neue, helvetica, Cantarell, Ubuntu, roboto, noto, arial, sans-serif",
+					"name": "System Sans-serif",
+					"slug": "system-sans-serif"
+				},
+				{
+					"fontFamily": "Iowan Old Style, Apple Garamond, Baskerville, Times New Roman, Droid Serif, Times, Source Serif Pro, serif, Apple Color Emoji, Segoe UI Emoji, Segoe UI Symbol",
+					"name": "System Serif",
+					"slug": "system-serif"
 				}
 			],
 			"fontSizes": [
diff --git a/styles/maelstrom.json b/styles/maelstrom.json
index 4d526620..e4ad142a 100644
--- a/styles/maelstrom.json
+++ b/styles/maelstrom.json
@@ -84,6 +84,16 @@
 					"fontFamily": "\"Jost\", sans-serif",
 					"name": "Jost",
 					"slug": "heading"
+				},
+				{
+					"fontFamily": "-apple-system, BlinkMacSystemFont, avenir next, avenir, segoe ui, helvetica neue, helvetica, Cantarell, Ubuntu, roboto, noto, arial, sans-serif",
+					"name": "System Sans-serif",
+					"slug": "system-sans-serif"
+				},
+				{
+					"fontFamily": "Iowan Old Style, Apple Garamond, Baskerville, Times New Roman, Droid Serif, Times, Source Serif Pro, serif, Apple Color Emoji, Segoe UI Emoji, Segoe UI Symbol",
+					"name": "System Serif",
+					"slug": "system-serif"
 				}
 			],
 			"fontSizes": [
diff --git a/styles/mint.json b/styles/mint.json
index c019de69..e9b6efd7 100644
--- a/styles/mint.json
+++ b/styles/mint.json
@@ -83,6 +83,16 @@
 					"fontFamily": "\"Jost\", sans-serif",
 					"name": "Jost",
 					"slug": "body"
+				},
+				{
+					"fontFamily": "-apple-system, BlinkMacSystemFont, avenir next, avenir, segoe ui, helvetica neue, helvetica, Cantarell, Ubuntu, roboto, noto, arial, sans-serif",
+					"name": "System Sans-serif",
+					"slug": "system-sans-serif"
+				},
+				{
+					"fontFamily": "Iowan Old Style, Apple Garamond, Baskerville, Times New Roman, Droid Serif, Times, Source Serif Pro, serif, Apple Color Emoji, Segoe UI Emoji, Segoe UI Symbol",
+					"name": "System Serif",
+					"slug": "system-serif"
 				}
 			]
 		}
diff --git a/theme.json b/theme.json
index d3208f57..a6fce3db 100644
--- a/theme.json
+++ b/theme.json
@@ -243,6 +243,16 @@
 					"fontFamily": "Cardo",
 					"name": "Cardo",
 					"slug": "heading"
+				},
+				{
+					"fontFamily": "-apple-system, BlinkMacSystemFont, avenir next, avenir, segoe ui, helvetica neue, helvetica, Cantarell, Ubuntu, roboto, noto, arial, sans-serif",
+					"name": "System Sans-serif",
+					"slug": "system-sans-serif"
+				},
+				{
+					"fontFamily": "Iowan Old Style, Apple Garamond, Baskerville, Times New Roman, Droid Serif, Times, Source Serif Pro, serif, Apple Color Emoji, Segoe UI Emoji, Segoe UI Symbol",
+					"name": "System Serif",
+					"slug": "system-Serif"
 				}
 			],
 			"fontSizes": [