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  • I've definitely seen special ICC profiles which turn off a channel. But I'm not sure if that's actually how human vision works. Commented Oct 7 at 19:06
  • @grawity, I've found a web page which claims to have color deficiencies ICC profiles (color.org/resources/cvd.xalter), I've downloaded them and tried via mpv --icc-profile=~/Documents/CVDlut-protan.icc but got "[vo/gpu] lcms2: Couldn't link the profiles", whereas mpv --icc-profile=/usr/share/color/icc/colord/SwappedRedAndGreen.icc works with some test profile I happened to have on my system. Commented Oct 8 at 6:30