save project

bug.py

 import turtle
 import turtle
 pen =turtle.Pen()
 pen =turtle.Pen()
 d = 1
 d = 1
+color = ["red","blue","green","yellow"]
+pen.speed()
 for i in range (300):
 for i in range (300):
+    pen.color(color[i%4])
     pen.forward(d)
     pen.forward(d)
     pen.right(91)
     pen.right(91)
     d += 1
     d += 1
+
+    pen.color(color[i%4])
 turtle.done()
 turtle.done()
+