I need help with dark mode in 4.2.1

i have reinstalled the latest version of cubes multiple times trying to figure out how to get dark mode in qubes manager. please help

1 Like

Try this


Another solution what I did is to edit /etc/environment in dom0


and logout or reboot.


This application is not configured correctly.

The QT_QPA_PLATFORMTHEME enviroment variable is not set (required value: qt5ct)

1 Like

Could this be because i didnt make “QT_QPA_PLATFORMTHEME=qt5ct” persistent?

If so, how can i make it persistent?

1 Like

The same thread explains what you need to do

1 Like

I could only get the export to work when I execute the manager from the terminal.

If you edit /usr/share/application/qubes-qube-manager.desktop

and change the Exec line to:

Exec=/bin/sh -c 'export QT_QPA_PLATFORMTHEME=gtk2; qubes-qube-manager'

then it should also be dark mode when you execute the manger from the application menu

1 Like

It worked, thanks i appreciate it

1 Like