YouTube Center is a userscript designed to expand the functionality of YouTube. It includes the ability to download the video you're watching, auto selecting your preferred video quality and much more.
In YouTubes UI for "Watch Later" there formerly was a "Remove Watched" button at the top of the page. In their new "Watch Later" UI it seems to just be treated like a regular playlist. While that's nice as it allows reordering, which was formerly not easily possible, it also removed the "Remove Watched" button. I believe YouTube center already labels the preview images of watched videos with a "Watched" indicator, it would be nice if it could also restore the "Remove Watched" button to the "Watch Later" playlist (or just playlists generally).
In YouTubes UI for "Watch Later" there formerly was a "Remove Watched" button at the top of the page. In their new "Watch Later" UI it seems to just be treated like a regular playlist. While that's nice as it allows reordering, which was formerly not easily possible, it also removed the "Remove Watched" button. I believe YouTube center already labels the preview images of watched videos with a "Watched" indicator, it would be nice if it could also restore the "Remove Watched" button to the "Watch Later" playlist (or just playlists generally).