I tested on an other computer with same OS (Linux manjaro) and same browser (Firefox 89.0.2).
I tested with chrome, and there is not this artifact.
If you don't have time to look at this, it's not a problem.
Thanks for making this greate game.
Great simple game. I like the riling cube animation when restart a level.
But in web browser, there is a strange purple artifact in the middle. Like a polygon with no texture ?
Great game. At the beginning it look like simple, but level after level it's not so easy.
