Bug #41272. Set toolbar colors to #DDDDDD which is same as Mac 4.x. r=don

themes/classic/global/mac/toolbar.css

@@ -6,13 +6,13 @@ toolbox
   
 toolbar
   {
-    background-color      : #CCCCCC;
+    background-color      : #DDDDDD;
     border                : 1px outset #CCCCCC;
   }
 
 toolbargrippy
   {
-    background-color      : #CCCCCC;
+    background-color      : #DDDDDD;
     border                : 1px solid #CCCCCC;
   }