Dark Night Mode is a free open source chrome extension which turns all the websites you browse into dark/night mode so that the white bright light do not strain your eyes.
Currently, the brightness setting is a general thing, it work the same on all websites, I think it would be better if the extension saved your Brightness preferences for every websites.
This is another suggestion
Currently, the brightness setting is a general thing, it work the same on all websites, I think it would be better if the extension saved your Brightness preferences for every websites.