startshape begin

tile { s 2 } background { h 60 sat 1 b 1 }

rule nested_circles {

CIRCLE { }
nested_circles { s 0.99 x 0.003 y 0.003 h -0.02| }

}

rule many_nested_circles {

nested_circles { }
many_nested_circles { s 0.9 x 0.05 }

} rule many_nested_circles {

nested_circles { }
many_nested_circles { s 0.9 y 0.05 }

}

rule staggered_circles {

many_nested_circles { }
many_nested_circles { x 1 r 90 }
many_nested_circles { x 0.5 y -1 r 180 }
many_nested_circles { x 1.5 y -1 r 270 }

}

rule begin {

staggered_circles { |h 180 h 240 sat 1 b 1 a -0.9 }
staggered_circles { |h 0 h 60 sat 1 b 1 a -0.9 x 0.5 y 0.5 z -100 }

}