LMT Launcher is another example of great root apps that improve usability and customizability of the Android UI. LMT Launcher lets you configure your own gesture controls, defining commands that can be executed regardless of foreground app, as well as set "invisible swipe areas" that can be set to accept commands. Additionally, you can also define a configurable "pie" menu that can either mimic the system and navigation bar, or accept your own personally defined commands.