Code
c=circle(r=150,fill="black")
r1= rectangle(w=211,h=211,fill="maroon",stroke="maroon")|repeat(30,rotate(50))
r2 = rectangle(w=195,h=195,fill="red",stroke="red")|rotate(15)|repeat(30,rotate(50))
r3= rectangle(w=179,h=179,fill="orange",stroke="orange")|rotate(20)|repeat(30,rotate(50))
r4= rectangle(w=165,h=165,fill="yellow",stroke="yellow")|rotate(15)|repeat(30,rotate(50))
r5 = rectangle(w=152,h=152,fill="white",stroke="white")|rotate(20)|repeat(30,rotate(50))
show(c,r1,r2,r3,r4,r5)
rect1=rectangle(h=20,w=20,fill="red",stroke="none")|repeat(10,rotate(30))
rect2=rectangle(h=45,w=45,fill="yellow", stroke="none") |repeat(10,rotate(30))
rect3=rectangle(h=60,w=60,fill="orange", stroke="none") |repeat(10,rotate(30))
rect4=rectangle(h=90,w=90,fill="brown", stroke="none") |repeat(10,rotate(30))
rect5=rectangle(h=110,w=110,fill="red", stroke="none") |repeat(10,rotate(30))
rect6=rectangle(h=130,w=130,fill="orange", stroke="none") |repeat(10,rotate(30))
rect7=rectangle(h=145,w=145,fill="yellow", stroke="none") |repeat(10,rotate(30))
show(rect7,rect6,rect5,rect4,rect3,rect2, rect1)