HELP hwo to change profile pciture, i cant. help

Dark mode An official, working dark mode fully compatible with the whole site would be real nice. It could be in a little form of a light switch on the homepage or it could be in the main settings.

live transitions ok, i didnt know the age thah the live transmitions appear
but these will be a good option

Queue problem Solve the queue problem, we can't upload videos bc of it, pls solve it, i cant upload videos!!

History I thought we could have a HISTORY to know which video we saw before