Android modifications come in a variety of forms. Some are merely cosmetic – think replacing your stock app icons, trying out a different system font, or switching to a third-party lock screen, to give a few examples. Others tinker with Android's inner workings to enable advanced features, such as the ability to remove bloatware or to modify app permissions. Then there's rooting – the process of obtaining administrator privileges over the operating system. While having root access doesn't do much on its own, it has long become the most popular Android hack as it paves the way for a plethora of awesome modifications to be executed.