Might be related to this upstream bug: http://bugzilla.gnome.org/show_bug.cgi?id=385900 . Hard to tell if it's theme related...
** Changed in: Ubuntu Sourcepackagename: None => gnome-panel -- Can't tell when various panel objects have keyboard focus https://launchpad.net/bugs/99446 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
