After seeing the amount of brain dead one star reviews for this extension it needs to be said that whenever this extension is causing your browser to run slow its either one of three things that its actually the fault of the extension with badly optimised code, a website itself has change technologies or its the browser itself. Recently it has been the last two so anybody who has written those reviews without for example, not considering maybe the extension runs fine on another browser you are NOT being open minded.

Furthermore a lot of people are now thinking you have to pay to use this extension now that they are asking for donations, the fact of the matter is a lot of people are not bothering to realise that it says "PAY FOR USING" not "PAY TO USE", talk about dyslexia.

looks cool and Finally I can play secretly without the bright light disturbing me or rather my parents

This has been saving my eyeballs for years. Thank you!

Very good extension!

Works amazing! Some sites require a bit of messing around with, but has been fantastic in saving my eyes when working on the screen often. People always ask how I get the dark mode version of websites that don't have it and I can't recommend this add-on enough 😁