Black level - Lagom LCD testBelow are 20 grey squares on a black background. On an ideal monitor, all of them should be distinguishable, even the very dark first row of squares. Of course, the black background should be as dark as possible. The square labeled '255' is the brightest possible value, which can help to subjectively judge the contrast ratio. As with the gradient test, you might see noisy dithering (see below). Fo
