Toolbar is now full width and the icons slightly larger for easier visibility.
sidebar/menu now a native WPF tab control. A little less buggy and lighter code to run. Also looks a tad better and easy to distinguish the selected item. Also opens up other UI settings such as making it a left hand nav (pictured), top, right, bottom etc.
The top icons are bigger and the battery icon changes color to stand out if the battery is dangerously low.
Not pictured, but the controller will change color to red/yellow if the response begins to become slow or lost.