When Tristan Rettich asked for art inspired by his Grids project as well as Jack Butcher, I was in the midst of working on my Undulations project, so I decided to combine Jack's checks with my waves, which by themselves already are grid based (as they are an offshoot of Virtual Architecture). This is the result. The check mark in this art is based on the Twitter Verified Badge symbol.

NB. I'm pushing the limits of SVG animation here, with hundreds and sometimes thousands of objects moving and changing colours. The animation might not render well on mobile devices.