Is your invert flag on the afterimage page correct?? Your "yellow" looks somewhat brown. The correct RGB coordinates for yellow are 255 255 0. User 66.245.103.36
I'm fairly sure it is. Look at a US flag. Do you see purple bands? The inverse bands would only be yellow if the actual bands were violet, which they are clearly not. The bands are more of a 0R 128G 255B.
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