I run EndeavourOS with an XFCE desktop environment.
Everything is working smooth and gorgeous. But I have two apps where I have problems with a dark theme (I use Ark-Dark). These apps aren’t dark:
I am sure these apps can be displayed in a dark mode, as I used them in dark mode before on Mint. But this is not an easy question to figure out without help. I tried but couldn’t find an appropriate article or discussion to solve this question.
Can you help me to make these apps dark? Without changing my desktop environment, I am happy with XFCE, only these 2 apps I prefer to have in dark.
So, the Ark-Dark theme you are using is a GTK theme using GTK toolkit.
But the apps you are using are based on Qt toolkit.
So you need to get the Qt theme according to the method mentioned by @ajgringo619 to get the dark theme for your Qt apps.
I hope this helps.