Negative Space

Negative space is a series of (by default) black and white animations based on the same twirly setup. However the function parameters are randomized, so the exact outcome of each animation can be a surprise.
You can rerandomize the animation by pressing O/Z.
You can also randomize the colors by pressing X.
You can turn on the second hidden color via the pause menu.

If you see an animation you like, you can turn it into a GIF and post it here.
I also plan to add more types of animations in the future, so this cart might become an album of small, slightly randomized experiments.