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 configuration tool.

Edit your ~/.config/Trolltech.conf and add the following lines:

[Qt]
style=GTK+

Now KeepassX looks like a native GTK+ application.

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