diff --git a/mrv2/docs/HISTORY.md b/mrv2/docs/HISTORY.md
index 571100920..4128d28c0 100644
--- a/mrv2/docs/HISTORY.md
+++ b/mrv2/docs/HISTORY.md
@@ -26,13 +26,30 @@ v1.0.9
 - Fixed a bug in session loading when there was no Input Color Space specified
   in the image, which got introduced in v1.0.8.
 - Made pen size be able to be 1 pixel making the cursor one line only.
-- Made Prores_ks (FFmpeg's native encoder) match Apple's Prores one at
-  4444p10le.
+- Made prores_ks (FFmpeg's native encoder) match Apple's ProRes one at
+  4444p10le.  It is now possible to take ProRes4444 encoded files to video
+  editors.
 - Upgraded to FFmpeg v6.1.1.
-- Fixed Darby's BT2020 (Ultra HD) coefficients, which I think were wrong.
 - Improved rotation speed of movies from cell phones, by doing it in OpenGL
   with metadata instead of with a C++ function.
 - Added Creation, Modified Date and Disk Space to Media Info Panel.
+- Removed Frame information from Start/End Time in Image Tab of Media Info
+  Panel.
+- Made Start/End Time in Image Tab of Media Info Panel not use scientific
+  notation for seconds.
+- Fixed changing frame rate from the Timeline toolbar not updating the FPS
+  indicator in the Image Tab of the Media Info Panel.
+- Improved the performance of Media Info Panel when playing a sequence and
+  the Image tab was closed.
+- Removed Default Speed information from Video Tab and moved it to Image Tab.
+- Improved colors of deactivated enums showing too dark to read the black
+  text by default.
+- It is now possible to use OpenColorIO's built-in configs.  That is, those
+  stating with ocio://.
+- Added a Choice menu in Preferences->OCIO to select any of the three built-in
+  OCIO configs.
+- Set ocio default config to the built-in:
+      ocio://default
 
 
 v1.0.8
diff --git a/mrv2/lib/mrvFl/mrvLanguages.cpp b/mrv2/lib/mrvFl/mrvLanguages.cpp
index 948ccda01..1f4fb58bb 100644
--- a/mrv2/lib/mrvFl/mrvLanguages.cpp
+++ b/mrv2/lib/mrvFl/mrvLanguages.cpp
@@ -255,7 +255,7 @@ namespace mrv
         }
         if (!language || strncmp(language, langcode, 2) != 0)
         {
-            setenv("LANGUAGE", langcode, 1)
+            setenv("LANGUAGE", langcode, 1);
             win32_execv();
             exit(0);
         }
diff --git a/mrv2/lib/mrvFl/mrvOCIO.cpp b/mrv2/lib/mrvFl/mrvOCIO.cpp
index 0a8763865..937a54469 100644
--- a/mrv2/lib/mrvFl/mrvOCIO.cpp
+++ b/mrv2/lib/mrvFl/mrvOCIO.cpp
@@ -12,6 +12,8 @@ namespace mrv
 {
     namespace image
     {
+        std::string ocioDefault = "ocio://default";
+        
         std::string ocioIcs()
         {
             auto uiICS = App::ui->uiICS;
diff --git a/mrv2/lib/mrvFl/mrvOCIO.h b/mrv2/lib/mrvFl/mrvOCIO.h
index f3acc4b19..a873bb7b7 100644
--- a/mrv2/lib/mrvFl/mrvOCIO.h
+++ b/mrv2/lib/mrvFl/mrvOCIO.h
@@ -10,6 +10,8 @@ namespace mrv
 {
     namespace image
     {
+        extern std::string ocioDefault; 
+        
         int ocioIcsIndex(const std::string&);
         std::string ocioIcs();
         void setOcioIcs(const std::string&);
diff --git a/mrv2/lib/mrvFl/mrvPreferences.cpp b/mrv2/lib/mrvFl/mrvPreferences.cpp
index 3aab10c3a..d5174be74 100644
--- a/mrv2/lib/mrvFl/mrvPreferences.cpp
+++ b/mrv2/lib/mrvFl/mrvPreferences.cpp
@@ -530,36 +530,21 @@ namespace mrv
 #ifdef TLRENDER_OCIO
         // Check OCIO variable first, then saved prefs and finally if nothing,
         // use this default.
-        std::string ocioDefault =
-            root + "/ocio/cg-config/cg-config-v1.0.0_aces-v1.3_ocio-v2.1.ocio";
         static std::string old_ocio;
 
-        const char* var = getenv("OCIO");
+        const char* var = fl_getenv("OCIO");
         if (!var || strlen(var) == 0)
         {
             ocio.get("config", tmpS, "", 2048);
 
             if (strlen(tmpS) != 0)
             {
-                if (file::isReadable(tmpS))
+                if (image::ocioDefault != tmpS)
                 {
                     mrvLOG_INFO(
                         "ocio", _("Setting OCIO config from preferences.")
-                                    << std::endl);
-                    uiPrefs->uiPrefsOCIOConfig->value(tmpS);
-                    var = uiPrefs->uiPrefsOCIOConfig->value();
-                }
-                else
-                {
-                    std::string root = tmpS;
-                    if (root.find("mrv2") != std::string::npos)
-                    {
-                        mrvLOG_INFO(
-                            "ocio", _("Setting OCIO config to default.")
-                                        << std::endl);
-                        uiPrefs->uiPrefsOCIOConfig->value(ocioDefault.c_str());
-                        var = uiPrefs->uiPrefsOCIOConfig->value();
-                    }
+                        << std::endl);
+                    setOcioConfig(tmpS);
                 }
             }
         }
@@ -568,15 +553,14 @@ namespace mrv
             mrvLOG_INFO(
                 "ocio", _("Setting OCIO config from OCIO "
                           "environment variable.")
-                            << std::endl);
-            uiPrefs->uiPrefsOCIOConfig->value(var);
+                << std::endl);
+            setOcioConfig(var);
         }
 
+        var = uiPrefs->uiPrefsOCIOConfig->value();
         if (!var || strlen(var) == 0 || resetSettings)
         {
-            mrvLOG_INFO(
-                "ocio", _("Setting OCIO config to default.") << std::endl);
-            uiPrefs->uiPrefsOCIOConfig->value(ocioDefault.c_str());
+            setOcioConfig(image::ocioDefault);
         }
 
         ocio.get("use_active_views", tmp, 1);
@@ -1900,32 +1884,57 @@ namespace mrv
     //////////////////////////////////////////////////////
     // OCIO
     /////////////////////////////////////////////////////
-    void Preferences::OCIO(ViewerUI* ui)
+    void Preferences::setOcioConfig(std::string configName)
     {
-#ifdef TLRENDER_OCIO
-        PreferencesUI* uiPrefs = ui->uiPrefs;
+        static std::string oldConfigName;
+        static const char* kModule = "ocio";
 
-        static std::string old_ocio;
-        const char* var = uiPrefs->uiPrefsOCIOConfig->value();
-        if (var && strlen(var) > 0)
-        {
+        if (oldConfigName == configName)
+            return;
 
-            if (old_ocio != var)
+        PreferencesUI* uiPrefs = App::ui->uiPrefs;
+        if (configName.substr(0, 7) != "ocio://")
+        {
+            if (file::isReadable(configName))
             {
-                old_ocio = var;
-                mrvLOG_INFO("ocio", _("OCIO config is now:") << std::endl);
-                mrvLOG_INFO("ocio", var << std::endl);
+                LOG_INFO(_("OCIO config is now:"));
             }
-
-            std::string parsed = expandVariables(var, "%", '%');
-            parsed = expandVariables(parsed, "${", '}');
-            if (old_ocio != parsed)
+            else
             {
-                mrvLOG_INFO("ocio", _("Expanded OCIO config to:") << std::endl);
-                mrvLOG_INFO("ocio", parsed << std::endl);
+                std::string msg =
+                    tl::string::Format(
+                        _("OCIO file \"{0}\" not found or not readable."))
+                    .arg(configName);
+                LOG_ERROR(msg);
+                LOG_INFO(_("Setting OCIO config to default:"));
+                configName = image::ocioDefault;
             }
+        }
+        else if (configName == image::ocioDefault)
+        {
+            LOG_INFO(_("Setting OCIO config to default:"));
+            configName = image::ocioDefault;
+        }
+        else
+        {
+            LOG_INFO(_("Setting OCIO config to built-in:"));
+        }
+
+        LOG_INFO(configName);
+        uiPrefs->uiPrefsOCIOConfig->value(configName.c_str());
+        oldConfigName = configName;
+    }
+    
+    void Preferences::OCIO(ViewerUI* ui)
+    {
+#ifdef TLRENDER_OCIO
+        PreferencesUI* uiPrefs = ui->uiPrefs;
 
-            uiPrefs->uiPrefsOCIOConfig->value(var);
+        static std::string old_ocio;
+        const char* var = uiPrefs->uiPrefsOCIOConfig->value();
+        if (var && strlen(var) > 0)
+        {   
+            setOcioConfig(var);
 
             // First, remove all additional defaults if any from pulldown
             // menu
@@ -1936,8 +1945,8 @@ namespace mrv
 
             try
             {
-
-                config = OCIO::Config::CreateFromFile(parsed.c_str());
+                const char* configName = uiPrefs->uiPrefsOCIOConfig->value();
+                config = OCIO::Config::CreateFromFile(configName);
 
                 uiPrefs->uiPrefsOCIOConfig->tooltip(config->getDescription());
 
diff --git a/mrv2/lib/mrvFl/mrvPreferences.h b/mrv2/lib/mrvFl/mrvPreferences.h
index 2b2385cb9..e45564101 100644
--- a/mrv2/lib/mrvFl/mrvPreferences.h
+++ b/mrv2/lib/mrvFl/mrvPreferences.h
@@ -47,6 +47,8 @@ namespace mrv
     protected:
         static bool set_transforms();
 
+        static void setOcioConfig(std::string config);
+        
     public:
         static ColorSchemes schemes;
         static bool native_file_chooser;
diff --git a/mrv2/lib/mrvFl/mrvSession.cpp b/mrv2/lib/mrvFl/mrvSession.cpp
index bd9feedb1..d9c3ed685 100644
--- a/mrv2/lib/mrvFl/mrvSession.cpp
+++ b/mrv2/lib/mrvFl/mrvSession.cpp
@@ -211,9 +211,12 @@ namespace mrv
 
             std::string config = ui->uiPrefs->uiPrefsOCIOConfig->value();
 
-            file::Path path(config);
-            config = getRelativePath(path, fileName).get();
-
+            if (config.substr(0, 7) != "ocio://")
+            {
+                file::Path path(config);
+                config = getRelativePath(path, fileName).get();
+            }
+            
             int ics = ui->uiICS->value();
             int view = ui->OCIOView->value();
             int layer = ui->uiColorChannel->value();
@@ -494,10 +497,17 @@ namespace mrv
                     j = session["ocio"];
                     std::string config = j["config"];
 
-                    replace_path(config);
+                    if (config.substr(0, 7) != "ocio://")
+                    {
+                        replace_path(config);
 
-                    if (file::isReadable(config))
+                        if (file::isReadable(config))
+                            ui->uiPrefs->uiPrefsOCIOConfig->value(config.c_str());
+                    }
+                    else
+                    {
                         ui->uiPrefs->uiPrefsOCIOConfig->value(config.c_str());
+                    }
 
                     Preferences::OCIO(ui);
 
diff --git a/mrv2/lib/mrvFl/mrvTimelinePlayer.cpp b/mrv2/lib/mrvFl/mrvTimelinePlayer.cpp
index a055fae5c..29ecf28a9 100644
--- a/mrv2/lib/mrvFl/mrvTimelinePlayer.cpp
+++ b/mrv2/lib/mrvFl/mrvTimelinePlayer.cpp
@@ -324,6 +324,9 @@ namespace mrv
         pushMessage("setSpeed", value);
 
         _p->player->setSpeed(value);
+
+        if (panel::imageInfoPanel)
+            panel::imageInfoPanel->refresh();
     }
 
     void TimelinePlayer::setPlayback(timeline::Playback value)
diff --git a/mrv2/lib/mrvPanels/mrvImageInfoPanel.cpp b/mrv2/lib/mrvPanels/mrvImageInfoPanel.cpp
index 3a09934d3..7caf3051c 100644
--- a/mrv2/lib/mrvPanels/mrvImageInfoPanel.cpp
+++ b/mrv2/lib/mrvPanels/mrvImageInfoPanel.cpp
@@ -1223,11 +1223,6 @@ namespace mrv
                 widget->labelcolor(FL_BLACK);
                 widget->textsize(12);
                 widget->textcolor(FL_BLACK);
-                for (size_t i = 0; i < num; ++i)
-                {
-                    widget->add(_(options[i]));
-                }
-                widget->value(unsigned(content));
                 widget->labelsize(kLabelSize);
                 widget->copy_label(_(options[content]));
                 if (tooltip)
@@ -1238,11 +1233,16 @@ namespace mrv
 
                 if (!editable)
                 {
-                    widget->deactivate();
+                    //widget->deactivate();
                     widget->box(FL_FLAT_BOX);
                 }
                 else
                 {
+                    for (size_t i = 0; i < num; ++i)
+                    {
+                        widget->add(_(options[i]));
+                    }
+                    widget->value(unsigned(content));
                     if (callback)
                         widget->callback(callback, this);
                 }
@@ -1389,7 +1389,7 @@ namespace mrv
             std::string text;
             
             double seconds = content.to_seconds();
-            snprintf(buf, 128, _("%.3g seconds "), seconds);
+            snprintf(buf, 128, _("%.3f seconds "), seconds);
             text += buf;
 
             text += content.to_timecode();
@@ -1695,111 +1695,135 @@ namespace mrv
             const auto tplayer = player->player();
             if (!tplayer)
                 return;
-
+            
             const auto& info = tplayer->getIOInfo();
+            unsigned num_video_streams = info.video.size();
+            // @todo: tlRender does not handle multiple audio tracks
+            unsigned num_audio_streams = info.audio.isValid();
+            // @todo: tlRender does not handle subtitle tracks
+            unsigned num_subtitle_streams = 0;
 
-            const auto& path = player->path();
-            const auto& directory = path.getDirectory();
+            if (m_image->is_open())
+            {
+                const auto& path = player->path();
+                const auto& directory = path.getDirectory();
             
-            const auto& audioPath = player->audioPath();
-            const otime::RationalTime& time = player->currentTime();
+                const auto& audioPath = player->audioPath();
+                const otime::RationalTime& time = player->currentTime();
 
-            const auto& fullname = createStringFromPathAndTime(path, time);
+                const auto& fullname = createStringFromPathAndTime(path, time);
 
-            add_text(
-                _("Directory"), _("Directory where clip resides"), directory);
+                add_text(
+                    _("Directory"), _("Directory where clip resides"), directory);
 
-            add_text(_("Filename"), _("Filename of the clip"), fullname);
+                add_text(_("Filename"), _("Filename of the clip"), fullname);
 
-            if (!audioPath.isEmpty() && path != audioPath)
-            {
-                add_text(
-                    _("Audio Directory"),
-                    _("Directory where audio clip resides"),
-                    audioPath.getDirectory());
+                if (!audioPath.isEmpty() && path != audioPath)
+                {
+                    add_text(
+                        _("Audio Directory"),
+                        _("Directory where audio clip resides"),
+                        audioPath.getDirectory());
 
-                add_text(
-                    _("Audio Filename"), _("Filename of the audio clip"),
-                    audioPath.get(-1, tl::file::PathType::FileName));
-            }
+                    add_text(
+                        _("Audio Filename"), _("Filename of the audio clip"),
+                        audioPath.get(-1, tl::file::PathType::FileName));
+                }
 
-            ++group;
+                ++group;
+
+                add_int(
+                    _("Video Streams"), _("Number of video streams in file"),
+                    num_video_streams);
+                add_int(
+                    _("Audio Streams"), _("Number of audio streams in file"),
+                    num_audio_streams);
+                // add_int( _("Subtitle Streams"),
+                //          _("Number of subtitle streams in file"),
+                //          num_subtitle_streams );
+
+                const auto& range = player->timeRange();
+                const auto& startTime = range.start_time();
+                const auto& endTime = range.end_time_inclusive();
+                add_time(
+                    _("Start Time"), _("Beginning frame of clip"), startTime,
+                    false);
+                add_time(_("End Time"), _("Ending frame of clip"), endTime, false);
+
+                const otime::TimeRange& iorange = player->inOutRange();
+                int64_t first = iorange.start_time().to_frames();
+                int64_t last = iorange.end_time_inclusive().to_frames();
+
+                add_int(
+                    _("First Frame"), _("First frame of clip - User selected"),
+                    (int)first, true, true, (Fl_Callback*)change_first_frame_cb,
+                    first, last);
+                add_int(
+                    _("Last Frame"), _("Last frame of clip - User selected"),
+                    (int)last, true, true, (Fl_Callback*)change_last_frame_cb, 2,
+                    last);
+
+
+                const char* name = "";
+                double fps = player->defaultSpeed();
+
+                if (is_equal(fps, 29.97))
+                    name = "(NTSC)";
+                else if (is_equal(fps, 30.0))
+                    name = "(60hz HDTV)";
+                else if (is_equal(fps, 25.0))
+                    name = "(PAL)";
+                else if (is_equal(fps, 24.0))
+                    name = "(Film)";
+                else if (is_equal(fps, 50.0))
+                    name = _("(PAL Fields)");
+                else if (is_equal(fps, 59.940059))
+                    name = _("(NTSC Fields)");
+
+                snprintf(buf, 256, "%g %s", fps, name);
 
-            DBGM1("m_curr=" << m_curr);
+                add_text(
+                    _("Default Speed"),
+                    _("Default Speed in Frames per Second"), buf);
+                    
+                fps = player->speed();
+                add_float(
+                    _("Current Speed"),
+                    _("Current Speed (Frames Per Second)"), fps,
+                    true, true, (Fl_Callback*)change_fps_cb, 1.0f, 60.0f,
+                    FL_WHEN_CHANGED);
 
-            unsigned num_video_streams = info.video.size();
-            // @todo: tlRender does not handle multiple audio tracks
-            unsigned num_audio_streams = info.audio.isValid();
-            // @todo: tlRender does not handle subtitle tracks
-            unsigned num_subtitle_streams = 0;
+                ++group;
 
-            add_int(
-                _("Video Streams"), _("Number of video streams in file"),
-                num_video_streams);
-            add_int(
-                _("Audio Streams"), _("Number of audio streams in file"),
-                num_audio_streams);
-            // add_int( _("Subtitle Streams"),
-            //          _("Number of subtitle streams in file"),
-            //          num_subtitle_streams );
-
-            const auto& range = player->timeRange();
-            const auto& startTime = range.start_time();
-            const auto& endTime = range.end_time_inclusive();
-            add_time(
-                _("Start Time"), _("Beginning frame of clip"), startTime,
-                false);
-            add_time(_("End Time"), _("Ending frame of clip"), endTime, false);
-
-            const otime::TimeRange& iorange = player->inOutRange();
-            int64_t first = iorange.start_time().to_frames();
-            int64_t last = iorange.end_time_inclusive().to_frames();
-
-            add_int(
-                _("First Frame"), _("First frame of clip - User selected"),
-                (int)first, true, true, (Fl_Callback*)change_first_frame_cb,
-                first, last);
-            add_int(
-                _("Last Frame"), _("Last frame of clip - User selected"),
-                (int)last, true, true, (Fl_Callback*)change_last_frame_cb, 2,
-                last);
-
-            float fps = player->speed();
-            add_float(
-                _("Current Speed"), _("Current Speed (Frames Per Second)"), fps,
-                true, true, (Fl_Callback*)change_fps_cb, 1.0f, 60.0f,
-                FL_WHEN_CHANGED);
-
-            ++group;
-
-            struct stat file_stat;
-            const std::string& filename = directory + fullname;
+                struct stat file_stat;
+                const std::string& filename = directory + fullname;
             
-            if (stat(filename.c_str(), &file_stat) == 0)
-            {
-                // Get file size
-                std::uintmax_t filesize = fs::file_size(filename);
-                add_memory(_("Disk space"), _("Disk space"), filesize );
+                if (stat(filename.c_str(), &file_stat) == 0)
+                {
+                    // Get file size
+                    std::uintmax_t filesize = fs::file_size(filename);
+                    add_memory(_("Disk space"), _("Disk space"), filesize );
                 
-                // Retrieve last modification time
-                time_t mod_time = file_stat.st_mtime;
-                time_t creation_time = file_stat.st_ctime;
+                    // Retrieve last modification time
+                    time_t mod_time = file_stat.st_mtime;
+                    time_t creation_time = file_stat.st_ctime;
         
-                // Format time according to current locale
-                strftime(buf, sizeof(buf), "%c", localtime(&creation_time));
-                add_text(_("Creation Date"), _("Creation date of file"),
-                         buf);
+                    // Format time according to current locale
+                    strftime(buf, sizeof(buf), "%c", localtime(&creation_time));
+                    add_text(_("Creation Date"), _("Creation date of file"),
+                             buf);
                 
-                // Format time according to current locale
-                strftime(buf, sizeof(buf), "%c", localtime(&mod_time));
-                add_text(_("Modified Date"), _("Last modified date of file"),
-                         buf);
-            }
+                    // Format time according to current locale
+                    strftime(buf, sizeof(buf), "%c", localtime(&mod_time));
+                    add_text(_("Modified Date"), _("Last modified date of file"),
+                             buf);
+                }
 
-            ++group;
+                ++group;
+            }
             
             m_image->show();
-
+            
             const auto view = _p->ui->uiView;
             const auto& videoData = view->getVideoData();
 
@@ -1878,12 +1902,12 @@ namespace mrv
                     const char* name = _("Unknown");
                     int num = sizeof(kAspectRatioNames) / sizeof(AspectName);
                     constexpr double fuzz = 0.001;
-                    for (int i = 0; i < num; ++i)
+                    for (int j = 0; j < num; ++j)
                     {
                         if (mrv::is_equal(
-                                aspect_ratio, kAspectRatioNames[i].ratio, fuzz))
+                                aspect_ratio, kAspectRatioNames[j].ratio, fuzz))
                         {
-                            name = _(kAspectRatioNames[i].name);
+                            name = _(kAspectRatioNames[j].name);
                             break;
                         }
                     }
@@ -1944,28 +1968,6 @@ namespace mrv
                         _("Image Channels"), _("Number of channels in clip"),
                         channelCount, false);
 
-                    name = "";
-                    double fps = player->defaultSpeed();
-
-                    if (is_equal(fps, 29.97))
-                        name = "(NTSC)";
-                    else if (is_equal(fps, 30.0))
-                        name = "(60hz HDTV)";
-                    else if (is_equal(fps, 25.0))
-                        name = "(PAL)";
-                    else if (is_equal(fps, 24.0))
-                        name = "(Film)";
-                    else if (is_equal(fps, 50.0))
-                        name = _("(PAL Fields)");
-                    else if (is_equal(fps, 59.940059))
-                        name = _("(NTSC Fields)");
-
-                    snprintf(buf, 256, "%g %s", fps, name);
-
-                    add_text(
-                        _("Default Speed"),
-                        _("Default Speed in Frames per Second"), buf);
-
                     std::vector< std::string > yuvCoeffs =
                         tl::image::getYUVCoefficientsLabels();
                     add_enum(
diff --git a/mrv2/lib/mrvUI/mrvMenus.cpp b/mrv2/lib/mrvUI/mrvMenus.cpp
index d35a20d70..7c6091726 100644
--- a/mrv2/lib/mrvUI/mrvMenus.cpp
+++ b/mrv2/lib/mrvUI/mrvMenus.cpp
@@ -66,14 +66,12 @@ namespace mrv
         char buf[256];
 
         const auto model = ui->app->filesModel();
-        const auto& files = model->observeFiles()->get();
-        size_t numFiles = files.size();
+        const size_t numFiles = model->observeFiles()->getSize();
 
         menu->clear();
 
         int idx;
 
-        DBG3;
         menu->add(
             _("File/Open/Movie or Sequence"), kOpenImage.hotkey(),
             (Fl_Callback*)open_cb, ui);
@@ -995,6 +993,7 @@ namespace mrv
         const int aIndex = model->observeAIndex()->get();
         if (numFiles > 0 && aIndex >= 0 && aIndex < numFiles)
         {
+            const auto& files = model->observeFiles()->get();
             std::string fileName = files[aIndex]->path.get(-1);
 
             const std::regex& regex = version_regex(ui, false);
@@ -1291,7 +1290,6 @@ namespace mrv
 #endif
 
         menu->redraw();
-        DBG3;
     }
 
 } // namespace mrv
diff --git a/mrv2/lib/mrvWidgets/mrvColorInfo.cpp b/mrv2/lib/mrvWidgets/mrvColorInfo.cpp
index dd5444cb6..e373e0ae0 100644
--- a/mrv2/lib/mrvWidgets/mrvColorInfo.cpp
+++ b/mrv2/lib/mrvWidgets/mrvColorInfo.cpp
@@ -214,8 +214,8 @@ namespace mrv
         tooltip(_("Mark an area in the image with SHIFT + the left mouse "
                   "button"));
 
-        Fl_Group* g = new Fl_Group(X + 8, Y + 10, 32, 32);
-        dcol = new ColorWidget(X + 8, Y + 10, 32, 32);
+        Fl_Group* g = new Fl_Group(X + 4, Y + 10, 32, 32);
+        dcol = new ColorWidget(X + 4, Y + 10, 32, 32);
         g->resizable(0);
         g->end();
 
diff --git a/mrv2/lib/mrvWidgets/mrvPreferencesUI.fl b/mrv2/lib/mrvWidgets/mrvPreferencesUI.fl
index 7cac455ee..54fd04c1c 100644
--- a/mrv2/lib/mrvWidgets/mrvPreferencesUI.fl
+++ b/mrv2/lib/mrvWidgets/mrvPreferencesUI.fl
@@ -3,8 +3,8 @@ version 1.0400
 i18n_type 1
 i18n_include {<libintl.h>}
 i18n_conditional {}
-i18n_gnu_function gettext
-i18n_gnu_static_function gettext_noop
+i18n_gnu_function _
+i18n_gnu_static_function _
 header_name {.h}
 code_name {.cxx}
 decl {\#include <FL/Fl_Color_Chooser.H>} {public global
@@ -164,7 +164,7 @@ If you try to open several mrv2s with different images, all these images will be
             }
           }
           Fl_Group {} {
-            label {View Window} open
+            label {View Window}
             xywh {288 35 555 349} box EMBOSSED_BOX align 5 hide
           } {
             Fl_Group {} {
@@ -916,16 +916,50 @@ v->uiPrefsFPS->value( g );}
             }
           }
           Fl_Group {} {
-            label OCIO
-            xywh {293 34 542 362} box EMBOSSED_BOX align 5 hide
+            label OCIO open
+            xywh {293 34 542 362} box EMBOSSED_BOX align 5
           } {
             Fl_Group {} {open
-              xywh {303 113 523 204}
+              xywh {302 93 523 168}
             } {
               Fl_Input uiPrefsOCIOConfig {
                 label {OCIO Config File}
                 user_data main user_data_type {ViewerUI*}
-                tooltip {This is the path to your config.ocio file.  It can be set with the environment variable OCIO, which takes precedence over any saved setting.} xywh {388 180 305 30} color 20 align 1 when 11 textcolor 56
+                tooltip {This is the path to your config.ocio file.  It can be set with the environment variable OCIO, which takes precedence over any saved setting.} xywh {312 180 435 31} color 20 align 1 when 11 textcolor 56
+              }
+              Fl_Choice {} {
+                label {Built-in Configs}
+                user_data this user_data_type {PreferencesUI*}
+                callback {const Fl_Menu_Item* item = o->mvalue();
+if (!item || !item->label()) return;
+
+const std::string entry = item->label();
+if (entry == _("Default"))
+{
+   v->uiPrefsOCIOConfig->value("ocio://default");
+}
+else if (entry == _("CG"))
+{
+   v->uiPrefsOCIOConfig->value("ocio://cg-config-v1.0.0_aces-v1.3_ocio-v2.1");
+}
+else if (entry == _("Studio"))
+{
+   v->uiPrefsOCIOConfig->value("ocio://studio-config-v1.0.0_aces-v1.3_ocio-v2.1");
+}} open selected
+                xywh {477 99 119 32} down_box BORDER_BOX
+              } {
+                MenuItem {} {
+                  label Default user_data_type {void*}
+                  xywh {20 20 100 20}
+                }
+                MenuItem {} {
+                  label CG user_data_type {void*}
+                  xywh {10 10 100 20}
+                }
+                MenuItem {} {
+                  label Studio user_data_type {void*}
+                  xywh {0 0 100 20}
+                }
               }
               Fl_Button {} {
                 label Pick
@@ -936,7 +970,7 @@ if ( r.empty() ) return;
 
 unsetenv( "OCIO" );
 uiPrefs->uiPrefsOCIOConfig->value( r.c_str() );}
-                tooltip {Pick a config.ocio file from disk.} xywh {693 180 55 31}
+                tooltip {Pick a config.ocio file from disk.} xywh {751 180 55 31}
               }
             }
           }
@@ -1324,13 +1358,13 @@ v->uiOCIO_Look->do_callback();}
           }
           Fl_Group {} {
             label Errors open
-            xywh {303 39 532 362} box EMBOSSED_BOX align 5
+            xywh {303 39 532 362} box EMBOSSED_BOX align 5 hide
           } {
             Fl_Group {} {open
               xywh {341 39 446 313}
             } {
               Fl_Choice uiPrefsRaiseLogWindowOnFFmpegError {
-                label {On FFmpeg Error} open selected
+                label {On FFmpeg Error} open
                 tooltip {Adjusts how Log Window behaves in case of an FFmpeg error.} xywh {493 128 255 25} down_box BORDER_BOX align 132 textcolor 32
                 class {mrv::Choice}
               } {
diff --git a/mrv2/po/es.po b/mrv2/po/es.po
index 63c1f8a5e..8749d549d 100644
--- a/mrv2/po/es.po
+++ b/mrv2/po/es.po
@@ -2327,7 +2327,7 @@ msgid "Unknown bit depth"
 msgstr "Profundid de bits desconocida"
 
 msgid "Depth"
-msgstr "Profudidas"
+msgstr "Profundidad"
 
 msgid "Bit depth of clip"
 msgstr "Profundidad en bits"
diff --git a/tlRender b/tlRender
index 44dcd6620..9245ef07f 160000
--- a/tlRender
+++ b/tlRender
@@ -1 +1 @@
-Subproject commit 44dcd66205e9662e89277e01d83c10db98836f24
+Subproject commit 9245ef07f7642d5781c790b800ea189cf0964035