New Sketch

By Yamini rayini
bg=rectangle(0,0,300,300,fill="white")
show(bg)
def random_color():
    r=random(255)
    b=random(255)
    g=random(255)
    return color(r,b,g,a=0.5) 
def rings():
    x=random(-150,150)
    y=random (-150,150)
    r=random(25)
    c1=circle(x=x,y=y,r=r,fill=random_color())
    c2=circle(x=x,y=y,r=3*r/4,fill=random_color())
    c3=circle(x=x,y=y,r=r/2,fill=random_color())
    c4=circle(x=x,y=y,r=r/4,fill=random_color())
    return c1+c2+c3+c4
    
for i in range(50):
    r=rings()
    show (r)