Thanks for the feedback.
Rounded corners is going to be much more difficult, if it’s even possible. I started with the square, with the intention of doing what I can to round them later on.
Everything looks centered to me. Can you provide a screenshot so I can see what’s off on your display?
The mute button. Are you trying on your UDOO? If yes, then you’ll need to update your Arduoino firmware. I’ll put up a Nightly firmware, it’s incomplete and full of bugs too 😉 Otherwise I’ll see if I can reproduce and fix this.
Also ensure that in Settings/Arduino/Setup Shield/Shield Capabilities that Audio is Off. If it’s on, and after you turn it off, comes on again, then there may be another issue I’ll need to find.