'moving' center dots that appear to change color
Martix Optical Illusion Grid in Black and Red - Staring at this black and red linear grid with its 'moving' center dots that appear to change color, creates an optical illusion, along with gradations of shading. The phenomena makes the grid pattern almost glow, and adds darkness and brightness, even though the colors remain the same, and the pattern is unaltered, as the eye shifts to focus.