Night Mode is a Material Design Application which can protect your eyes from being hurt by bright screen at night creating a mask at the top of screen in order to make screen darker. .
Even though you are using our application to make screen darker you should reduce the time watching screen(while watching a movie or playing a game)
The application has two modes:
· Default mode: It needs no permissions but it couldn't cover the status bar and lock screen.
· Overlay Status Bar mode: It needs permissions in some systems (Example: MIUI 6+ and Android 6.0+)

( Enable permission in Android 6.0+: "Settings" app - "Apps" - The gear icon - "Draw over other apps" - "Night Screen" - Then enable it )
** Added support for Android 7.0 and 7.1