Just a fun math thing I found on the internet and decided to recreate It works by creating an array of points in a 2D space and giving them a color The "cell" linked to a point is the set of coordinate for wich said point is the closest of all points To achieve this result a naive aproch is to find for each pixel on the screen wich point is the closest but that is very expensive Another method is just to draw circle of a certain radius around each point and diminish the radius of all circles progressively (remove the "Run without screen refresh" of the [ draw circle ] block to see what it mean) Of course the smaller the steps during this phase the smoother the result You can play around with that "closest point" condition by using different distances formula