I need help with dark mode in 4.2.1

[renehoj]

Try this

Dark Theme for [Qubes Manager] Not Working in 4.1

In dom0: $ sudo qubes-dom0-update qt5ct qt5-qtstyleplugins Then, run: $ export QT_QPA_PLATFORMTHEME=qt5ct Then: $ qt5ct Here you select Style: gtk2 (to match your current XFCE settings) and you can select also Fonts and Icon Theme. Only QT_QPA_PLATFORMTHEME=qt5ct needs to be made persistent.