Click the Pic - How does this work?(twitter.com)2 points·by oo7jeep·13 anni fa·1 commentstwitter.comClick the Pic - How does this work?https://twitter.com/SciencePorn/status/4225652557266411521 commentsPost comment[–]valtron·13 anni fareplyIt's composed of two images with transparent backgrounds. The foreground on one of the images consists only of white, and on the other only of black. Depending on what color's behind the picture, it obscures one or the other.Edit: Gray background: https://twitter.com/SciencePorn/status/422565255726641152/ph...
Edit: Gray background: https://twitter.com/SciencePorn/status/422565255726641152/ph...