Very good and simple, nice user interface

I regret every single second I didn't know about this add-on. This saved my eyes, a must have if you value them or do any nighttime computer surfing at all.

This extension can change scripts that are especially bright to be dimmer and darker, so you don't have to get tired of staring at a blue screen that can damage your retina! I highly recommend this to overtime workers or fulltime workers!

The best you can get

mostly works, but on jisho.org it breaks the drawing function, preventing me from seeing what i'm writing

muy chevre el color negro y el efecto sepia pero no me gusta que me vuelva lento el computador