I can confirm this bug on Ubuntu 9.10 (Karmic Koala) Beta. The tray icon of Banshee 1.4.3 has a non-transparent (light gray) background when I set the GNOME panel to be transparent.
I can confirm this bug on Ubuntu 9.10 (Karmic Koala) Beta. The tray icon of Banshee 1.4.3 has a non-transparent (light gray) background when I set the GNOME panel to be transparent.