Yes you can change the font colour BUT selecting black makes the font white (or something bright) in dark mode and unreadable. If you choose yellow (or something bright) you can now see this in dark mode. But not in not in normal mode.
It would be great if automatic worked, but this is not visible in dark mode.
Seems like the automatic translations of colours in dark mode are not working as we would wish.
@Microsoft - something to sort out for a future update please!