Developer's DescriptionBy hajime namuraFull screen display tester.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:WhiteGreyBlackRedOrangeYellowGreenIndigoPurpleAvailable test patterns:GridDotsGeometryGray scaleColor scaleColor chips