Make Playlist Covers Editable

I’m not sure whether this is just me but I’d like to be able to edit the covers for my playlists in the same way I can edit covers for regular albums. It’s a little thing but it would really make my playlists look a lot classier than just the tiled four covers that you get as standard.

A lot of my playlists are of songs I’ve heard particular radio DJs play, so it would be great to have a picture of e.g. Giles Peterson as the cover for my Giles Peterson playlist.