I had a similar problem with this package, I contacted upstream and they said they were working on it, the most annoying thing i found was that the colours persisted after uninstallation, to solve I had to remove the ~/.gtkrc file (or something like that) which made it all better...
-- gtk2-engines-gtk-qt causes GNOME-panel to crash upon startup and causes Gnome to look ugly https://launchpad.net/bugs/36256 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
