Comment 8 for bug 430013

Gtk-Qt-engine was the worst of the lot: bug 220575, bug 335029, bug 211622, bug 211841, etc. A visual nightmare due to is bugginess, unstable when even installed in a gnome environment, and unmaintained by its author.

Really, QtCurve is the best option at the moment in providing something for GTK that reasonably looks Oxygen.