Which R&D Tooltip colors look best to you?
From these 3 options:
The colour contrast for the two other options is too low to comfortably read.
Colour contrast ratios:
If you’d like to test more with this I suggest you have a look at Colour Contrast Analyser.
Red is most readable, although I’m not a fan of using that color for regular info.
I asked in lots of places and people generally prefer black
I think you might need a font with a little bit more bold in it…
From all four options now, I prefer the black one the most. Although I voted on the green one before. In all four cases, it somehow doesn’t really fit inside the rest of the screen. It feels a little bit strange…