I would like to be able to view the live wallpapers (backdrop) while playing to a Chromecast, instead of the static album artwork. It is really a soothing experience to view photos from all over the world while listening to music.
Updated on 2019-12-04
This idea has been Not Right Now for a while so we'll be setting to Case Closed.
If we have new information we'll be back to provide an update.