7ktTube: Reverts YouTube to the 2016 Layout! (Polymer Engine FIX) | Customisation interface(API) included | Customizable thumbnail size | Customizable video player size | Download video button(no redirect) | Grey-out thumbnails on watched videos | Hide suggestions blocks | Hide all the filter bars | And much more!
Changelog: [2.3.7] - 2021-03-23 YouTube just replaced all buttons with new ugly ones... Switched back to the old ones again. [2.4.0] - 2021-03-28 Corrected the alignment of the Live-chat table [2.4.2] - 2021-03-28 Prevented the new alignment of the Live-chat table displacing the Watch Later table [2.4.3] - 2021-04-01 Added new video player size option (1280 x 720) Added Force video quality options 144p -> 4320p Fixed subscribe button being to small in some languages Added the old "Video not available" page design [2.4.5] - 2021-04-02 App-drawer table padding weren't displayed properly any longer for some reason.. issue now fixed. [2.4.6] - 2021-04-05 Minor CSS updates [2.4.7] - 2021-04-06 Updated Grey-out watched items function. Video-titles will no longer change opacity (text were almost invisible and hard to read) [2.4.8] - 2021-04-17 YouTube deleted specific css elements for buttons (Join / Subscribe on watch page) ... should work properly now. And the Notification bell button now properly colored in dark mode [2.4.9] - 2021-04-17 script did not work properly on home and subscription page, issue now fixed. [2.5.0] - 2021-04-17 Fixed issue with avatars being square even if the "Make profile pictures square again" were disabled [2.5.1] - [2.5.2] - 2021-04-22 Minor CSS updates
Grey out watched video thumbnails info: Use ALT+LeftClick or ALT+RightClick on a video list item to manually toggle the watched marker. The mouse button is defined in the script and can be changed. For restoring/merging history, source file can also be a YouTube's history data JSON (downloadable from https://support.google.com/accounts/answer/3024190?hl=en). Or a list of YouTube video URLs (using current time as timestamps).
The script options menu is located in the top right corner:
Currently available options:
Old YouTube logo option
Turn on or off video previews when mouse-over
Make the search-bar smaller and better positioned
Grey-out thumbnails indicator for watched videos
Hide Filters bar at front page and when watching video in "up next column"