Ok, so i have been doing some comparison with other extensions of the same kind.

My conclusion after being OCD testing on and off the different extensions is that Dark Reader have the best quality themes for the eyes, like its meant to be.

And no, it does not slow down nothing.

A winner!

system make so slow

Saves My Eyeballs made an account just for this addon

Been using this for months and love it. A few of the other dark extensions I've tried can break some site elements; I've never experienced that with this one.

This is what I have been waiting for years.

Works great on any site I read, on all of my devices (Android 8 & 9, Windows 10), has individual settings for all sites.

Thank you 😂

je n'aime pas

Можно настраивать фон даже в светлых темах.
Абсолютно то, что нужно!

Works very well for an all-in-one solution, and has a good amount of features. Would recommend if you value your eyes.

my eyes are cured of cancer thank you sir aliaksandr shutau, you have cured the cancer cure of cure. 5/7 would recommend. love from uganda, please everyone use this if you want no cancer eyes.

全局夜间非常好，还能自己调整亮度对比度。但有一个小问题，在新建标签页的时候会闪一下白色，希望作者能尽快解决这个问题

Usei essa extensão por bastante tempo ate eu me deparar com um concorrente seu, Midnight Lizard.
Essa extensão e quase perfeita, possui alguns bug em determinados site que tornavam impossível sua utilização. Só não ganha nota 5 por causa disso.

nice one, we sometimes use it after whitelisting few websites using Scalefusion Kiosk Browser Lockdown