Spazio totale , by mario nigro , 1964 , abstract , Op Art style , Pattern, Line
A computer generated image of a blue and yellow checkered surface.
 an optical illusion. The illusion is made up of small yellow dots on a dark blue background. The yellow dots are arranged in a grid like pattern. There are also orange dots on the left side of the image. The orange dots are in the center of the black dots. The black dots are on the right side and left side as well. The image has a black border around it.