Circle Spiral

startshape xtcircles
 
background {hue 240 sat 0.5 b 1}
 
rule xtcircles {
	tcircles{}
	xtcircles{x 2 y 1 s 0.9 r 15}
}
 
rule tcircles {
	circles{a -0.9 hue 120 sat 1 b 1}
	circles{x 3 a -0.9 hue 360 sat 1 b 1}
}
 
rule circles{
	circle{}
	circles{s 0.95 x -0.0005 y 1.45}
}
 
rule circle {
	360 *{r 1 x 0.5}SQUARE{}
}