gnome-panel uses fake transparency, if you turn the opacity down on a window for real the shadow opacity goes down too.
** Changed in: compiz (Ubuntu) Sourcepackagename: compiz => gnome-panel Status: Needs Info => Unconfirmed -- desktop effects in feisty: shadow on transparent panels looks bad https://launchpad.net/bugs/89769 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs