You can set your own background, without having to mess with the bar on the right.

Long pressing the play/pause button stops playback (instead of just pause). Previous and Next button changes track.

Clicking on the album art will direct you to the WPS (also known as "Now Playing") screen. If the music is playing - it will keep playing, if it's paused - it'll keep paused, however, if it's stopped, clicking on the button will start playback.

Clicking on the menu icon will direct you to the menu - this means if you're browsing your music collection and want to quickly go back to the menu, you just need to click on the icon, instead of clicking on "/home/user/MyDocs/......" path a lot of times.

I am now doing the While Playing Screen. hopefully by wednesday everything is done (this if I encounter many issues in the way - if not, expect a release sooner)