There is a few good posts making fun of it but beware of the many "uhhh ackshully" nerds trying to explain how no one could possibly know that it's a legal crosswalk when painted like that so it's good, actually it got painted over https://twitter.com/anxious_e/status/1410986599848890373
You can see the other side in the video here: https://chicago.cbslocal.com/2021/06/03/two-crosswalks-outside-city-hall-painted-in-rainbow-pride-transgender-pride-colors
Looks like the one shown in the picture might have been the trans one.