Yes I would add Docstrings into a code because it is a way to remind me of something or to show where i left off

tile.py

@@ -1,27 +1,32 @@
 from turtle import *
-
+from math import sqrt
 def draw_tile(size):
     "Draws one tile, which can be repeated to form a pattern."
     draw_tile_outline(size)
     draw_squiggle(size)
 
 def draw_tile_outline(size):
-    pencolor("#dddddd")
+    pencolor("#FFBD88")
     square(size)
 
 def draw_squiggle(size):
-    forward(size/4)
+    diagonal = size*sqrt(2)
     pencolor("black")
-    left(90)
-    quarter_arc_right(size/4)
-    quarter_arc_left(size/4)
-    quarter_arc_left(size/4)
-    quarter_arc_right(size/4)
-    left(90)
-    fly(size/4)
-    left(90)
-    fly(size)
-    left(90)
+    left(45)
+    forward(diagonal)
+    back(diagonal)
+    left(45)
+    pencolor("#FFBD88")
+    forward(size)
+    pencolor("black")
+    right(135)
+    forward(diagonal)
+    pencolor("#FFBD88")
+    penup()
+    right(135)
+    forward(size)
+    right(180)
+
    
 def fly(distance):
     "Moves without drawing."