turtle graphics design

from turtle import *

import colorsys

speed(0)

hideturtle()

pensize(4)

bgcolor('black')

hue = 0.0

for i in range(1,37):

    rt(10)

    for i in range(1,5):

        color=colorsys.hsv_to_rgb(hue,1,1)

        pencolor(color)

        hue+=0.005

        fd(200)

        rt(90)

       

done()