A plane perfectly divided, shapes overlapping, hiding, merging, until the clear becomes obscured.

No actual lines, no masking, no hard edges, instead everything on the canvas is drawn from millions of perfect circles.

In live view:

• There are four possible aspect ratios: 1:1, 3:2, 16:9 & 3:1. The algorithm will pick the one that most closely matches the screen's aspect ratio. The "recommended" ratio is 3:2.
• Press "s" to save the output to a PNG.