save project

diy1.py

 import turtle
 import turtle
 
 
 pen = turtle.Pen()
 pen = turtle.Pen()
-
-
+b = turtle.Screen()
+b.bgcolor("sky blue")
+colors=["red','orange",'green','blue']
 pen.speed(10000)
 pen.speed(10000)
 for i in range(1,1700):
 for i in range(1,1700):
     pen.forward(i)
     pen.forward(i)
-    
+    pen.color(colors[i%4] )
+     
     pen.right(91)
     pen.right(91)
 pen.hideturtle()
 pen.hideturtle()
 turtle.done()
 turtle.done()
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