To remind you what afterimage illusions do; after some period of staring at the certain image, the colors burn inside your eye retina, and after the illusion animation disappears, because of your newly gained super-powers, you’re still able to see the negative image afterwards. Now that we’ve repeated the basics, let’s see what today’s optical illusion does. Stare at the little black cross for a minute or so. After some time, blue and pink letters (that spell incorrect colors) will disappear. Still, you’ll be able to see the previously read colors. Does all this make sense? I had some tremendous trouble with my English today… must be the hangover.