I’m currently testing the MATE desktop environment, and one of my most used applications is KeepassX. KeepassX is a QT4 application, and it looks like a Windows application when run on the MATE desktop. Apparentlty the default look and feel selection strategy of QT fails.
I studied the Qt article in the ArchWiki on how
to set the style for QT applications. They recommend using the
qtconfig-qt4, which isn’t
available on Fedora 27. But they also gave me the hint how to get this working without the
~/.config/Trolltech.conf and add the following lines:
Now KeepassX looks like a native GTK+ application.