save project

diy1.py

 import turtle
 import turtle
 
 
 pen = turtle.Pen()
 pen = turtle.Pen()
-pen.speed(0)
-
+pen.speed(1)
+screen = turtle.Screen()
+screen.bgcolor('black')
+am = ['red','blue','green','yellow']
 for i in range(1,1000,1):
 for i in range(1,1000,1):
+    pen.pencolor(am[i%4])
     pen.forward(i)
     pen.forward(i)
     pen.left(91)
     pen.left(91)
 pen.hideturtle()
 pen.hideturtle()