Perberos/Mate-Desktop-Environment — Issue #27: Notification Area icons are not transparent
Author: BBgamer
Created: 2011-10-29 10:20:59+00:00
State: open

I'm not 100% certain this is a bug with all themes, but at least with the 'Elementary' GTK theme, the notification areas are not transparent and show a white background.

Here's an example with wicd:
http://i.imgur.com/QZFXo.png