Full screen display tester.

It allows you to test and check if there is any dead pixels, burn-in, backlight bleeding, or color cast on your android device, including navigation and status bars.

In addition, it is also a LCD flashlight with maximum brightness.

Available solid background colors:
White
Grey
Black
Red
Orange
Yellow
Green
Indigo
Purple

Available test patterns:
Grid
Dots
Geometry
Gray scale
Color scale
Color chips