diff --git a/gs-ubuntu-ambiance-dark-purple/gnome-shell/theme.json b/gs-ubuntu-ambiance-dark-purple/gnome-shell/theme.json
index cd9f8c8..1dd880d 100644
--- a/gs-ubuntu-ambiance-dark-purple/gnome-shell/theme.json
+++ b/gs-ubuntu-ambiance-dark-purple/gnome-shell/theme.json
@@ -1,10 +1,10 @@
 { 
    "shell-theme": {
-   "name": "Ubuntu Ambiance-Dark Purple", 
+   "name": "Ambiance-Dark Purple", 
    "author": "Half-Left", 
    "version": "1.0",
    "type":   "custom",
-   "thumbnail": "preview-ubuntu-ambiance.jpg", 
+   "thumbnail": "preview-ambiance.png", 
    "url": "" 
     }
 }
diff --git a/gs-ubuntu-ambiance-dark/gnome-shell/theme.json b/gs-ubuntu-ambiance-dark/gnome-shell/theme.json
index 1331332..a995697 100644
--- a/gs-ubuntu-ambiance-dark/gnome-shell/theme.json
+++ b/gs-ubuntu-ambiance-dark/gnome-shell/theme.json
@@ -1,10 +1,10 @@
 { 
    "shell-theme": {
-   "name": "Ubuntu Ambiance Dark", 
+   "name": "Ambiance Dark", 
    "author": "Half-Left", 
    "version": "1.0",
    "type":   "custom",
-   "thumbnail": "preview-ubuntu-ambiance.jpg", 
+   "thumbnail": "preview-ambiance.png", 
    "url": "" 
     }
 }
diff --git a/gs-ubuntu-ambiance-light/gnome-shell/theme.json b/gs-ubuntu-ambiance-light/gnome-shell/theme.json
index 88d48e6..fb0116c 100644
--- a/gs-ubuntu-ambiance-light/gnome-shell/theme.json
+++ b/gs-ubuntu-ambiance-light/gnome-shell/theme.json
@@ -1,10 +1,10 @@
 { 
    "shell-theme": {
-   "name": "Ubuntu Ambiance Light", 
+   "name": "Ambiance Light", 
    "author": "Half-Left", 
    "version": "1.0",
    "type":   "custom",
-   "thumbnail": "preview-ubuntu-ambiance.jpg", 
+   "thumbnail": "preview-ambiance.png", 
    "url": "" 
     }
 }
-- 
1.7.5.4