From b3dec3fd51458f930c7c11f2fde3316c2b763740 Mon Sep 17 00:00:00 2001
From: Grant Sanderson <grant@3blue1brown.com>
Date: Sat, 28 Jan 2023 17:53:49 -0800
Subject: [PATCH] Small fixes

---
 manimlib/mobject/types/vectorized_mobject.py | 18 ++++--------------
 1 file changed, 4 insertions(+), 14 deletions(-)

diff --git a/manimlib/mobject/types/vectorized_mobject.py b/manimlib/mobject/types/vectorized_mobject.py
index 6c675ef7..3b19b9dd 100644
--- a/manimlib/mobject/types/vectorized_mobject.py
+++ b/manimlib/mobject/types/vectorized_mobject.py
@@ -144,24 +144,14 @@ class VMobject(Mobject):
     def __getitem__(self, value: int | slice) -> VMobject:
         return super().__getitem__(value)
 
+    def __iter__(self) -> Iterable[VMobject]:
+        return super().__iter__()
+
     def add(self, *vmobjects: VMobject):
         if not all((isinstance(m, VMobject) for m in vmobjects)):
             raise Exception("All submobjects must be of type VMobject")
         super().add(*vmobjects)
 
-    def add_background_rectangle(
-        self,
-        color: ManimColor | None = None,
-        opacity: float = 0.75,
-        **kwargs
-    ):
-        normal = self.family_members_with_points()[0].get_unit_normal()
-        super().add_background_rectangle(color, opacity, **kwargs)
-        rect = self.background_rectangle
-        if np.dot(rect.get_unit_normal(), normal) < 0:
-            rect.reverse_points()
-        return self
-
     # Colors
     def init_colors(self):
         self.set_fill(
@@ -459,7 +449,7 @@ class VMobject(Mobject):
     def use_winding_fill(self, value: bool = True, recurse: bool = True):
         for submob in self.get_family(recurse):
             submob._use_winding_fill = value
-            if not value:
+            if not value and submob.has_points():
                 submob.subdivide_intersections()
         return self