This extension lets you SHIFT+CLICK video thumbnails on your subscriptions feed to toggle tinting them a darker shade of color. Useful for people that have a lot of subscriptions and like making their own visual cues. Features & Limitations ✅ Cloud sync - Persist your marked videos across different sessions/computers! ✅ Custom colors - Customize the color you want videos to be tinted with! ✅ Multi account - Logging into another account won't wipe your marked videos! ❌ Grid only - List view on the subscriptions page is unsupported. ❌ Disables previewing - This extension disables YouTube's video preview on mouseover. Once you've installed the extension, you can use it on your Subscriptions Feed: https://www.youtube.com/feed/subscriptions?flow=1 Note that the extension works only when you go to your sub feed directly (e.g. via bookmark). The code is open source on GitHub - pull requests are welcome!