This happens in all gtk applications, if you use beryl and you open beryl-manager from alt+f2 you will have the same issue. Only gtk applications get the qt look and feel when you open them from kmenu.
-- Firefox launched from alt-f2 doesn't apply all gtk2-qt-engine settings https://launchpad.net/bugs/94615 -- kubuntu-bugs mailing list kubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs