Pixoff: Pixel OFF Save Battery
Saves battery with filter that turns off pixels

Saves battery by applying a filter that turns off pixels of screens also incorporates the possibility of make a filter night decreasing so damaging blue light and you can further reduce battery consumption with facility to put a wallpaper to true black.

Screens doesn't have a backlight at all. Instead each little sub-pixel is like a tiny red blue or green colored light. If the screen is instructed to display black it doesn't need to block any light it simply doesn't light up any of the little colored sub-pixels.

Black pixels save you a lot of power because those pixels can be turned completely off. There is a relationship between brightness and power but to really save juice you need a true black.

How fix detected in Screen Overlay Android 6.0
In the version of Android 6.0 it is possible that in some app that screen is launched to fix follow the instructions in the next video https://www.youtube.com/watch?v=S0S1znycHFM

Please report any bugs to Pixoff Google Community - http://pixoff.urysoft.com
Thank you and enjoy!