On the monitor, it's very uniform and isn't tied to the window of course - when you move it the pattern is static. On the Mac, it's visible at "looks like 2880x1620" resolution, not at any of the ...

Had the LCD screen replaced on my Dell and I'm noticing an odd "mottled" patten on the lower 1/3 of the display. Kinda like a faint brushed aluminum texture over everything.

How to Calibrate Your Home TV or Monitor with Netflix's Secret 'Test Patterns' Netflix, a video streaming service, distributes a lot of content that supports 4K resolution, HDR, and Dolby Atmos sound.