diff --git a/src/doodles/examples/clock.py b/src/doodles/examples/clock.py
index acfe4a6..45649f5 100644
--- a/src/doodles/examples/clock.py
+++ b/src/doodles/examples/clock.py
@@ -1,4 +1,3 @@
-import time
 import math
 from doodles import Circle, Color, Line, Group
 
@@ -27,5 +26,4 @@ def create():
     #     200
     # ).z(100)
 
-    l = Line(g).vec(0, 200).z(100).animate("degrees", lambda t: t % 60 / 60 * 360)
-    # l.animate("color", color_func)
+    Line(g).vec(0, 200).z(100).animate("degrees", lambda t: t % 60 / 60 * 360)
diff --git a/src/doodles/examples/liskov.py b/src/doodles/examples/liskov.py
index 6d2ecab..3d6769c 100644
--- a/src/doodles/examples/liskov.py
+++ b/src/doodles/examples/liskov.py
@@ -1,7 +1,7 @@
 """
 Demo of the interchangable nature of these classes.
 """
-from doodles import Polygon, Line, Rectangle, Circle, Color
+from doodles import Polygon, Line, Rectangle, Circle
 import random
 import math
 
@@ -22,4 +22,6 @@ def rainbow(t) -> tuple[int, int, int]:
 def create():
     for _ in range(100):
         DoodleType = random.choice(types)
-        doodle = DoodleType().random().animate("color", rainbow)
+        d = DoodleType()
+        # we do not need to know what DoodleType is, these methods all work
+        d.random().animate("color", rainbow)
diff --git a/src/doodles/examples/polygons.py b/src/doodles/examples/polygons.py
index 6430b27..154c87e 100644
--- a/src/doodles/examples/polygons.py
+++ b/src/doodles/examples/polygons.py
@@ -1,4 +1,4 @@
-from doodles import Polygon, Color
+from doodles import Polygon
 import random
 
 
diff --git a/src/doodles/lines.py b/src/doodles/lines.py
index 623c276..dd68427 100644
--- a/src/doodles/lines.py
+++ b/src/doodles/lines.py
@@ -6,7 +6,7 @@ the easiest to learn from.
 """
 import math
 import random
-from typing import Callable, Self
+from typing import Self
 from .doodles import Doodle
 from .world import world
 
diff --git a/src/doodles/world.py b/src/doodles/world.py
index 9b43d9a..9ea1c7d 100644
--- a/src/doodles/world.py
+++ b/src/doodles/world.py
@@ -12,7 +12,7 @@ from .draw_engine import DrawEngine
 # this is needed because of circular references
 if TYPE_CHECKING:
     from .doodles import Doodle
-    from .shapes import Rectangle, Circle
+    from .shapes import Rectangle, Circle, Polygon
     from .lines import Line
     from .text import Text