Fix rainbows on color eink with the Discrete Fourier Transform in Kindle Comic Converter
Why the open web links it
Explains how to fix rainbow artifacts on color eInk displays using the Discrete Fourier Transform in Kindle Comic Converter.
Linked by 2 independent sites, 1 of them widely read in the 2026-10 crawl of the open web, including workers.dev, github.com.