Turtle Stuff

import turtle

t = turtle.Turtle()
t.speed(0)

for i in range(15):
  for color in ["#ff0000", "#ff4000", "#ff8000", "#ffc000", "#ffff00", "#c0ff00", "#80ff00", "#44ff00", "#00ff00", "#00ff40", "#00ff80", "#00ffc0", "#00ffff", "#00c0ff", "#0080ff", "#0040ff", "#0000ff", "#4000ff", "#8000ff", "#c000ff", "#ff00ff", "#ff00c0", "#ff0080", "#ff0040"]:
    t.color(color)
    t.forward(5)
    t.left(1)
t.color("#000000")
t.left(90)
for i in range(4):
  for j in range(90):
    t.forward(5)
    t.left(1)
  t.left(180)