=== modified file 'Ambiance/gtk-3.0/gtk-widgets.css'
--- Ambiance/gtk-3.0/gtk-widgets.css	2013-02-19 13:06:53 +0000
+++ Ambiance/gtk-3.0/gtk-widgets.css	2013-03-01 23:35:05 +0000
@@ -44,7 +44,6 @@
     -GtkToolbar-internal-padding: 0;
     -GtkTreeView-expander-size: 8;
     -GtkTreeView-vertical-separator: 0;
-    -GtkWidget-wide-separators: true;
     -GtkWidget-separator-width: 2;
     -GtkWidget-separator-height: 2;
     -GtkWidget-focus-padding: 0;
@@ -1567,6 +1566,8 @@
 
 .menuitem.separator {
     -GtkMenuItem-horizontal-padding: 0;
+    border: none;
+    color: @dark_bg_color;
 }
 
 GtkTreeMenu .menuitem.separator,

=== modified file 'Radiance/gtk-3.0/gtk-widgets.css'
--- Radiance/gtk-3.0/gtk-widgets.css	2013-02-19 13:06:53 +0000
+++ Radiance/gtk-3.0/gtk-widgets.css	2013-03-01 23:35:05 +0000
@@ -44,7 +44,6 @@
     -GtkToolbar-internal-padding: 0;
     -GtkTreeView-expander-size: 8;
     -GtkTreeView-vertical-separator: 0;
-    -GtkWidget-wide-separators: true;
     -GtkWidget-separator-width: 2;
     -GtkWidget-separator-height: 2;
     -GtkWidget-focus-padding: 0;
@@ -1567,6 +1566,8 @@
 
 .menuitem.separator {
     -GtkMenuItem-horizontal-padding: 0;
+    border: none;
+    color: @dark_bg_color;
 }
 
 GtkTreeMenu .menuitem.separator,