This addresses the three most relevant adjustments I often need to make: brightness, contrast and hue. The adjustments are subtle. I have trouble with dark modes because they are not subtle and many sites are not depicted accurately. This allows continuation of light mode with relief.
Having just started using it I'm finding two things I wish were different. It doesn't seem to preview the settings. I'm also not sure whether it remembers the settings for each site, There doesn't seem to be a way to have the setting apply automatically to every site.
However, I believe this is a new extension and I'm really glad I found it.