You can customize the theme and colors from YouTube yourself. You can do many more settings Youtube
Mytube for Youtube™
Removes all annoying ads and banners from YouTube!
Cookie Editor Pro
An effective and user-friendly Cookie Editor Pro.
JSON Formatter & Beautifier
makes it simple to read JSON Code for browser
Purple Of YouTube™
Shades of Purple YouTube theme that's easy on the eyes.
SkipClick for YouTube™
No need to watch boring ads on YouTube, they will be Skip Ads automatically
YouTube running non stop No video paused continue watching, No video ads
Haven't found what you need? Check out the Chrome Web Store.