this is ahoSpirographer, you can get a geometric drawing art that produces mathematical roulette curves of the variety technically known as hypotrochoids and epitrochoids.

With random background color, drawing speed and stroke size. Don't worry, you always have a second chance to get a cooler pattern in the next chance. but the background, speed and stroke will be the same.

when you got a slow speed, it will become a chill and heartwarming piece, but when it comes with enough speed it will become a stunning animation that can hypnotize you.

just enjoy it!