Thumbnails and Dark Mode Feature to change video thumbnails from video stills and dark mode so the site is easier on the eyes

Time duration on featured video The random popular video starring on frontpage should have a timecode like all the other ones. I have to put them in fullscreen to know if I'm gonna watch a 5min or 50s video.

Old YT option make it so that you could select which year it was.
the guis from these eras:
https://youtube.com/playlist?list=PLN5fmudwjejFKHN_5TP8QT1baTr5XM_MO

ANNOTATIONS ANNOTATIONS

Annotations It would be nice to put annotations on videos!