diff --git a/doomsday/libs/gui/net.dengine.stdlib.gui.pack/fonts.dei b/doomsday/libs/gui/net.dengine.stdlib.gui.pack/fonts.dei
index d7e642c578..ab5ccfa750 100644
--- a/doomsday/libs/gui/net.dengine.stdlib.gui.pack/fonts.dei
+++ b/doomsday/libs/gui/net.dengine.stdlib.gui.pack/fonts.dei
@@ -48,35 +48,38 @@ group {
     condition: Version.OS in ['macx', 'ios']
 
     script {
+        loadFonts()
+
         # Define mappings for native font styles and weights.
-        import App
-        App.addFontMapping("Apple UI", {
-            ['regular', 25]: '#system-light',
-            ['regular', 50]: '#system',
-            ['regular', 75]: '#system-bold',
-            ['italic',  25]: '#system-italic-light',
-            ['italic',  50]: '#system-italic',
-            ['italic',  75]: '#system-italic-bold'
-        })
-        App.addFontMapping("Apple Mono", {
-            ['regular', 25]: 'Menlo-Regular',
-            ['regular', 50]: 'Menlo-Regular',
-            ['regular', 75]: 'Menlo-Bold',
-            ['italic',  25]: 'Menlo-Italic',
-            ['italic',  50]: 'Menlo-Italic',
-            ['italic',  75]: 'Menlo-BoldItalic'
-        })
+        # (These work with the CoreText font renderer.)
+        # import App
+        # App.addFontMapping("Apple UI", {
+        #     ['regular', 25]: '#system-light',
+        #     ['regular', 50]: '#system',
+        #     ['regular', 75]: '#system-bold',
+        #     ['italic',  25]: '#system-italic-light',
+        #     ['italic',  50]: '#system-italic',
+        #     ['italic',  75]: '#system-italic-bold'
+        # })
+        # App.addFontMapping("Apple Mono", {
+        #     ['regular', 25]: 'Menlo-Regular',
+        #     ['regular', 50]: 'Menlo-Regular',
+        #     ['regular', 75]: 'Menlo-Bold',
+        #     ['italic',  25]: 'Menlo-Italic',
+        #     ['italic',  50]: 'Menlo-Italic',
+        #     ['italic',  75]: 'Menlo-BoldItalic'
+        # })
     }
 
     font default {
-        family: Apple UI
+        family: SourceSansPro
         size: 16pt
         weight: normal
         style: normal
     }
 
     font monospace inherits default {
-        family: Apple Mono
+        family: SourceCodePro
         size: 12pt
     }
 }
diff --git a/doomsday/libs/gui/src/text/font.cpp b/doomsday/libs/gui/src/text/font.cpp
index ac8e5fc5e2..982b62febb 100644
--- a/doomsday/libs/gui/src/text/font.cpp
+++ b/doomsday/libs/gui/src/text/font.cpp
@@ -22,13 +22,13 @@
 #include <de/Hash>
 #include <de/ThreadLocal>
 
-#if (defined(MACOSX) && defined(MACOS_10_7)) || defined(DE_IOS)
-#   include "coretextnativefont_macx.h"
-    namespace de { using PlatformFont = CoreTextNativeFont; }
-#else
+//#if (defined(MACOSX) && defined(MACOS_10_7)) || defined(DE_IOS)
+//#   include "coretextnativefont_macx.h"
+//    namespace de { using PlatformFont = CoreTextNativeFont; }
+//#else
 #   include "stbttnativefont.h"
     namespace de { using PlatformFont = StbTtNativeFont; }
-#endif
+//#endif
 
 namespace std {
 template<>