The same with brightness. I have a shortcut to lower the white point because the lowest brightness level is still far to bright in complete darkness.

brightness should go the other way too.

for example I read kindle books on my phone in dark mode (white text on a black background). Having the brightness all the way up isn't fully bright white text, it is more like brightish grey.

To get bright text to read in bright environments, I set the kindle app to black text on white background, then use accessibility to invert colors. I get noticeably brighter text on a black background.