From 77ce17679c1ec6e85484f33a56b1e7900ed3c785 Mon Sep 17 00:00:00 2001
From: Grant Sanderson <grant@3blue1brown.com>
Date: Mon, 9 Aug 2021 15:42:32 -0700
Subject: [PATCH 1/2] Change back to simpler Mobject.scale implementation

---
 manimlib/mobject/mobject.py | 18 ++++++------------
 1 file changed, 6 insertions(+), 12 deletions(-)

diff --git a/manimlib/mobject/mobject.py b/manimlib/mobject/mobject.py
index 1568734e..2454dbf3 100644
--- a/manimlib/mobject/mobject.py
+++ b/manimlib/mobject/mobject.py
@@ -572,18 +572,12 @@ class Mobject(object):
         respect to that point.
         """
         scale_factor = max(scale_factor, min_scale_factor)
-        if about_point is None and about_edge is not None:
-            about_point = self.get_bounding_box_point(about_edge)
-        if recurse:
-            for submob in self.submobjects:
-                submob.scale(scale_factor, about_point=about_point, recurse=True)
-        if not self.submobjects:
-            self.apply_points_function(
-                lambda points: scale_factor * points,
-                works_on_bounding_box=True,
-                about_point=about_point,
-                about_edge=about_edge
-            )
+        self.apply_points_function(
+            lambda points: scale_factor * points,
+            about_point=about_point,
+            about_edge=about_edge,
+            works_on_bounding_box=True,
+        )
         return self
 
     def stretch(self, factor, dim, **kwargs):

From e15133467588869c2f42b29b70f4099be463c835 Mon Sep 17 00:00:00 2001
From: Grant Sanderson <grant@3blue1brown.com>
Date: Mon, 9 Aug 2021 16:06:19 -0700
Subject: [PATCH 2/2] Alternate fix to Decimal scaling issue

---
 manimlib/mobject/mobject.py | 9 ++++++++-
 manimlib/mobject/numbers.py | 4 +---
 2 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/manimlib/mobject/mobject.py b/manimlib/mobject/mobject.py
index 679ddece..79b489de 100644
--- a/manimlib/mobject/mobject.py
+++ b/manimlib/mobject/mobject.py
@@ -561,7 +561,7 @@ class Mobject(object):
         )
         return self
 
-    def scale(self, scale_factor, min_scale_factor=1e-8, about_point=None, about_edge=ORIGIN, recurse=True):
+    def scale(self, scale_factor, min_scale_factor=1e-8, about_point=None, about_edge=ORIGIN):
         """
         Default behavior is to scale about the center of the mobject.
         The argument about_edge can be a vector, indicating which side of
@@ -572,6 +572,8 @@ class Mobject(object):
         respect to that point.
         """
         scale_factor = max(scale_factor, min_scale_factor)
+        for mob in self.get_family():
+            mob._handle_scale_side_effects(scale_factor)
         self.apply_points_function(
             lambda points: scale_factor * points,
             about_point=about_point,
@@ -580,6 +582,11 @@ class Mobject(object):
         )
         return self
 
+    def _handle_scale_side_effects(self, scale_factor):
+        # In case subclasses, such as DecimalNumber, need to make
+        # any other changes when the size gets altered
+        pass
+
     def stretch(self, factor, dim, **kwargs):
         def func(points):
             points[:, dim] *= factor
diff --git a/manimlib/mobject/numbers.py b/manimlib/mobject/numbers.py
index 34d1fa6c..a1949f51 100644
--- a/manimlib/mobject/numbers.py
+++ b/manimlib/mobject/numbers.py
@@ -135,10 +135,8 @@ class DecimalNumber(VMobject):
             sm1.match_style(sm2)
         return self
 
-    def scale(self, scale_factor, **kwargs):
-        super().scale(scale_factor, **kwargs)
+    def _handle_scale_side_effects(self, scale_factor):
         self.data["font_size"] *= scale_factor
-        return self
 
     def get_value(self):
         return self.number