[at_]

At 6.9mb with minimal (obvious) noise that animation is a serious feat of compression... I had to check it wasn't a live shader

[XCSme]

The motion looks stable/"predictable", I assume that helps a lot with the compression.

[parentheses]

I wonder if this is a consideration in designing the animation.

[XCSme]

It most likely also looks better than random noise.

[hughes]

Looks inspired by the moving pigments in Apple's Foundation series.

[weikju]

First thing I noticed as well