Use the MediaController to listen for changes in the current playing music and update the background to match the album art of the playing track.
Use the [MediaController](https://developer.android.com/reference/android/media/session/MediaController.html) added in Android 5.0 to listen for changes in the current playing music and update the background to match the album art of the playing track. Currently we publish the current artwork image and artwork details to the Muzei API. Ideally this should do the same (using the track name and album+artist for the details) to ensure that third parties stay in sync, but not show the 'new artwork' notification. After music stops playing, the existing source should resume with its current artwork. Any artwork changes that occur while music is playing should be ignored (for purposes of display/API update purposes). This should be an option that users can enabled/disable at will via the Advanced settings screen.