Another motif is a pattern made by a geometric-optical illusion, according to the nature of the difference between objects and percepts. It’s called “The phase shift Popple illusion” referred from A. V. Popple, D. M. Levi. 

This pattern is expanded as poster series overwrapped on legendary icons wearing glasses. “What you get is What you see” is a parody tagline, taken from WYSIWYG (what you see is what you get) for computer interface.