I have a problem with Qt5 applications under KDE3. They are using incorrect (default?) style and colors. Qt4 and KDE4 applications under KDE3 looks according to KDE4 settings. But Qt5 apps are not. ~/.bash_profile contain XDG_CURRENT_DESKTOP=kde string but it's not working with Qt5 apps for me.
But under KDE4 all Qt5 programs are using KDE4 style and colors.
Tried with smplayer 16.6 and qbittorrent 3.3.4, both are now using Qt5.
How can I force Qt5 programs to treat desktop (KDE3) as KDE4?
I'm using openSUSE 13.2, KDE4, Qt4 and Qt5 are from standard repos, KDE3 is from KDE_KDE3 repo.
Sorry for my English and thanks for any help.