screenlighter keep screen on when the specific applications running on the foreground. user can select the target applications for bright and dim category. when the application in bright category is running, screenlighter keeps the screen on. when the application in dim category is running, screenlighter keeps the screen on and allow dim. when the screenlighter is active and keep screen on, it sends a notification to system status bar to prompt user the screenlighter is active. feature   • keep screen on when user selected app running in the foreground   • auto start after system boot up   • screenlighter will stop itself after screen off until user click any view on screen, so the screen will not keep on if it be turned on by an unexpected notification from some apps, to avoid the wa