* youtube watch later pl, liked/disliked videos, my playlists, my channel playlists, history, etc
* youtube charts (either via search and order or find out if can get other way through api)
* Video quality selection (currently always 720p)

* protection against youtube fails (at least in collection update)
* warnings about sources failing to update
* Options to prevent consecutive videos from the same source (maxRepeat and push)

* add more default collections
* take better screenshots?