It's missing one of my favorite mind blowing color illusions - the "checker shadow illusion": https://en.wikipedia.org/wiki/Checker_shadow_illusion https://en.w

It's missing one of my favorite mind blowing color illusions - the "checker shadow illusion": https://en.wikipedia.org/wiki/Checker_shadow_illusion https://en.wikipedia.org/wiki/Checker_shadow_illusion The square A and B are exactly the same color, even though you would be 100% sure they are not. I used to print it out and bring it to school and everyone would argue with me that they are different color. I would also have a cut-out mask to cover the rest and prove they are not :-).