Comment # 28 on bug 1149986 from Marcel Kuehlhorn

(In reply to Xu Zhao from comment #27)
> Just curious, why does openSUSE still have the gtk2 priortise patch in libqt5-qtbase? It doesn't make any sense to me to still favor gtk2 theme over gtk3 on Qt applications. Removing this patch will solve this problem automatically, based on my understanding of this bug.

Good question, maybe one of the maintainers could answer that?