Finally found it, the extension to help darken every page with no harass at all, it helps with ambient light problems, ex.: too much light in a room turn it on, too few turn it off, and just with a single click..
Thank You dlinBernard

It's almost perfect, just need an easier & faster way to whitelist websites, for example, plugin icon in the toolbar should expand and show a BUTTON for whitelisting the current opened page domain, like in adblock Plus & many other plugins.
Thanks

Doesn't work on Reddit. oh well

удобно включать и выключать, и не глючит!

Works great on mobile

Ultra simple

niceeeeeee

Awesome extension. This literally saved my eyes

Good

I have been looking for a dark mode that works correctly for quite some time. I like that you can toggle it on and off quickly as well as the wide variety of dark styles under the add-on options.

Keep up the good work as I can no longer browse without dark mode enabled.

The style that seems to work well for most pages is the class b style: "Dark invert #5"

helpful and simple

Hummm

my password is not working

Pretty good overall! What I would like though please is is the ability to edit existing dark modes so that I can learn the CSS behind them. My favourite mode is #17 (Classy Dark) and I just want to be able to tweak the link colours.

Twitch streams are blacked out, no video just sound when dark mode activated, even when you exclude the site from the addon.

Useful but not for dark themed sites like youtube "Dark Mode/YouTubeRED, buttons are blacked out.
Use "Dark Background and Light Text 0.6.8"
Works everywhere for me.