This is how the 3 Images you linked are rendered for me under Windows.
Just a stab in the dark, are you running dark mode (or whatever it’s called) under MacOS?
Edit:
" BTW … the logo issue is already reported under Logo schwarzer Hintergrund … maybe the two threads could get combined somehow …"
Yes, but that’s in the german speaking section so it’s not really a duplicate. Anyways, I wasn’t able to reproduce there either…