[coldtea]

Yes. But it's relatively easy to fix it, you can add an entry in settings with color overrides for any combo of theme/UI element...

[tejado]

Yes I know. This is what I meant with „so I changed the colors“.

But anyway: I wonder why most themes are so badly colored so that I need to fix it myself....

[coldtea]

I'm not sure, but my guess is that almost all themes are attempts by developers, not people versed in color theory or knowledgable about proper contrast etc.