diff --git a/themes/animated/manifest.json b/themes/animated/manifest.json
index e7c9751..30484ed 100755
--- a/themes/animated/manifest.json
+++ b/themes/animated/manifest.json
@@ -1,19 +1,19 @@
 {
 
-  "description": "Theme using an animated PNG file as the headerURL image. See https://developer.mozilla.org/en-US/Add-ons/WebExtensions/Examples#themes",
+  "description": "Theme using an animated PNG file as the theme_frame image. See https://developer.mozilla.org/en-US/Add-ons/WebExtensions/Examples#themes",
   "manifest_version": 2,
   "name": "animated",
-  "version": "1.0",
+  "version": "1.1",
   "homepage_url": "https://github.com/mdn/webextensions-examples/tree/master/themes/animated",
 
   "theme": {
     "images": {
-      "headerURL": "parrot.png"
+      "theme_frame": "parrot.png"
     },
     
     "colors": {
-       "accentcolor": "#ffffff",
-       "textcolor": "#000"
+       "frame": "#ffffff",
+       "tab_text": "#000"
     }
   }
 }
diff --git a/themes/weta_fade/manifest.json b/themes/weta_fade/manifest.json
index 30145f7..5201115 100644
--- a/themes/weta_fade/manifest.json
+++ b/themes/weta_fade/manifest.json
@@ -1,19 +1,19 @@
 {
 
-  "description": "Theme using a PNG as the headerURL image, employing a faded edge. See https://developer.mozilla.org/en-US/Add-ons/WebExtensions/Examples#themes",
+  "description": "Theme using a PNG as the theme_frame image, employing a faded edge. See https://developer.mozilla.org/en-US/Add-ons/WebExtensions/Examples#themes",
   "manifest_version": 2,
   "name": "weta_fade",
-  "version": "1.0",
+  "version": "1.1",
   "homepage_url": "https://github.com/mdn/webextensions-examples/tree/master/themes/weta_fade",
 
   "theme": {
     "images": {
-      "headerURL": "weta.png"
+      "theme_frame": "weta.png"
     },
     
     "colors": {
-       "accentcolor": "#adb09f",
-       "textcolor": "#000"
+       "frame": "#adb09f",
+       "tab_text": "#000"
     }
   }
 }
diff --git a/themes/weta_fade_chrome/manifest.json b/themes/weta_fade_chrome/manifest.json
index ea0d35d..4df6b19 100755
--- a/themes/weta_fade_chrome/manifest.json
+++ b/themes/weta_fade_chrome/manifest.json
@@ -1,9 +1,9 @@
 {
 
-  "description": "Version of the weta_fade theme using the Chrome compatible manifest keys. See https://developer.mozilla.org/en-US/Add-ons/WebExtensions/Examples#themes",
+  "description": "Version of the weta_fade theme using the Chrome compatible color definitions. See https://developer.mozilla.org/en-US/Add-ons/WebExtensions/Examples#themes",
   "manifest_version": 2,
   "name": "weta_fade_chrome",
-  "version": "1.0",
+  "version": "1.1",
   "homepage_url": "https://github.com/mdn/webextensions-examples/tree/master/themes/weta_fade_chrome",
 
 
diff --git a/themes/weta_mirror/empty.png b/themes/weta_mirror/empty.png
deleted file mode 100755
index ceafa98..0000000
Binary files a/themes/weta_mirror/empty.png and /dev/null differ
diff --git a/themes/weta_mirror/manifest.json b/themes/weta_mirror/manifest.json
index 7a6749d..2b8fec4 100755
--- a/themes/weta_mirror/manifest.json
+++ b/themes/weta_mirror/manifest.json
@@ -3,12 +3,11 @@
   "description": "Theme using multiple additional_backgrounds images. See https://developer.mozilla.org/en-US/Add-ons/WebExtensions/Examples#themes",
   "manifest_version": 2,
   "name": "weta_mirror",
-  "version": "1.0",
+  "version": "1.1",
   "homepage_url": "https://github.com/mdn/webextensions-examples/tree/master/themes/weta_mirror",
 
   "theme": {
     "images": {
-      "headerURL": "empty.png",
       "additional_backgrounds": [ "weta.png", "weta-left.png"]
     },
 
@@ -17,8 +16,8 @@
     },
     
     "colors": {
-       "accentcolor": "#adb09f",
-       "textcolor": "#000"
+       "frame": "#adb09f",
+       "tab_text": "#000"
     }
   }
 }
diff --git a/themes/weta_tiled/empty.png b/themes/weta_tiled/empty.png
deleted file mode 100755
index ceafa98..0000000
Binary files a/themes/weta_tiled/empty.png and /dev/null differ
diff --git a/themes/weta_tiled/manifest.json b/themes/weta_tiled/manifest.json
index 347b65c..5f23b79 100644
--- a/themes/weta_tiled/manifest.json
+++ b/themes/weta_tiled/manifest.json
@@ -1,15 +1,14 @@
 {
 
-  "description": "Theme with a single image placed centrally and then tiled. See https://developer.mozilla.org/en-US/Add-ons/WebExtensions/Examples#themes",
+  "description": "Theme with a single image placed centrally and then tiled. Also, illustrates the use of frame_inactive to change the header background color when the browser window isn't in focus. See https://developer.mozilla.org/en-US/Add-ons/WebExtensions/Examples#themes",
   "manifest_version": 2,
   "name": "weta_tiled",
-  "version": "1.0",
+  "version": "1.1",
   "homepage_url": "https://github.com/mdn/webextensions-examples/tree/master/themes/weta_tiled",
 
   "theme": {
     "images": {
-      "headerURL": "empty.png",
-      "additional_backgrounds": [ "weta_for_tiling.png"]
+      "additional_backgrounds": "weta_for_tiling.png"
     },
 
     "properties": {
@@ -18,8 +17,9 @@
    },
     
     "colors": {
-       "accentcolor": "#adb09f",
-       "textcolor": "#000"
+       "frame": "#adb09f",
+       "frame_inactive": "#000",
+       "tab_text": "#000"
     }
   }
 }