From November 21st, 2016 to October 25th, 2020, 100% user give 5-star rating. for Funky colors chrome extension.
I contacted the developer by shouting in his ear and he said to try this trippy app. I am artist student and can do this but anyway. Fun!
Not too useful, as far as I can see, but works as advertised and quite trippy. WARNING: this is probably a horrible prank to pull on anyone with epilepsy. ;)