Comment 99 for bug 403135

I actually think this is an issue between the theme/theme engine/gnome-panel. Testing with a theme that uses the Murrine engine from git, "elementary-remix" found at http://gnome-look.org/content/show.php/Elementary+remix?content=110612, and
then expanding the panel to 36px so the background tiles, Banshee seems to have a perfectly transparent icon, as shown in this attachment.

As noted by someone else somewhere earlier in this bug report, everything used to work just fine with an older version of gnome-panel. Does anyone know what changed/went wrong?