One of the most powerful features of the Android operating system, which many people don’t know, is the fact that you’re not restricted to the user interface that your mobile provider embeds on your handset. Unlike certain other systems…cough…iOS…cough… Android gives you the flexibility to tweak and customise everything from the Home screen to the icons and beyond. Ultimately, of course, you can do away with the stock system and replace it completely with a new version of your choosing, like the…