use at your own risk. you might get stuck in a boot-loop due to systemui crashing. if you know how to use adb and have usb debugging enabled you may be able to recover from this without factory resetting or restoring backup. requires root on android 4.3 and higher. virtual button requires root on all platforms. audience: ========= - gamers: some games feel choppy? decrease the resolution while you play to improve performance significantly. - developers: you can test your application ui for different devices by changing resolution and density to match your target devices. the application provides many templates for flagship devices to select from. two android shell commands control screen resolution and density (dots per inch): am display-size am display-density for android 4.3 and hi