startshape B background{b -1}
rule B 1000 {
A {} B {s 0.9996 b 0.0001 x 0.1 r 1 hue -0.01}
}
rule B {
A {} B {s 0.9996 b 0.00001 x 0.1 flip -180 hue -0.01}
}
rule B 0.1 {
A {} B {s 1 b 0.0001 x 0.1 flip -180 hue -45} B {s 2 b 0.0001 x 0.1 r 1 hue +45}
}
rule B 0.1 {
A {} B {s 2 b 0.0001 x 0.1 flip -180 hue -90} B {s 1 b 0.0001 x 0.1 r 1 hue +90}
} rule A {
CIRCLE{b 0 sat 1}
}