How my e-reader lost its stripes

Automated excerpt

Either my middle-aged eyes were finally failing me, or was dark grey rendering as black? I created a quick test image and verified that dark grey really was black, while light grey was extremely pale (almost white). Flat patches establish the four shades; the patterned areas test how grey behaves beside other shades. The first two patches in the top row should be black and dark grey. The nudge only needs to distinguish dark grey, light grey, and “leave this pixel alone”.

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