https://bugs.winehq.org/show_bug.cgi?id=42204
--- Comment #6 from Nikolay Sivov bunglehead@gmail.com --- (In reply to Olivier F. R. Dierick from comment #5)
With the default color theme, I don't see any of the reported issues.
That's not surprising.
It could help if you replace one color at a time with "255,0,255" in the registry to point out the names of the problematic colors.
It's would be useful to have a screenshot from Windows vs Wine with distinct colors so any difference is apparent.