ResolutionRatio
Window:1680x9891.70:1
Screen:1680x105016:10

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Version 1.0

Look at the horizontal and vertical RGB lines around the border of this image. Are the horizontal lines brighter?

Are the vertical RGB lines soft or the wrong color?

These are all signs of color subsampling.

Do the diagonal RGB lines in the pin wheel change colors throughout the line?

Look at the RGB text below. Do certain text colors on the different background colors look blurry?

This is a sign of color subsampling.

ResolutionRatio
Window:1680x9891.70:1

This test pattern requires a minimum window resolution of 1024x700.

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