Peace, people.
As a biomedical scientist who studies vision, although not at the level of the brain, what is interesting to me is that there seems to be a difference in
contrast sensitivity as well. I would not be surprised if people see the screen as a different color. That is well known and easily tested. It does surprise me that some people see a
gradient of colors whereas others see a uniform color. In men with red/green colorblindness, I might not be too surprised if it were a red to green gradient, but a yellow to blue puzzles me. Also, it is not just men who don't see the gradient. While I do see it in some of the photos, Harry's looks OK to me. A very interesting phenomenon.