diff --git a/manimlib/mobject/numbers.py b/manimlib/mobject/numbers.py
index f332eabe..7a8d05ba 100644
--- a/manimlib/mobject/numbers.py
+++ b/manimlib/mobject/numbers.py
@@ -130,7 +130,7 @@ class DecimalNumber(VMobject):
 
     def set_value(self, number):
         move_to_point = self.get_edge_center(self.edge_to_fix)
-        old_submobjects = self.submobjects
+        old_submobjects = list(self.submobjects)
         self.set_submobjects_from_number(number)
         self.move_to(move_to_point, self.edge_to_fix)
         for sm1, sm2 in zip(self.submobjects, old_submobjects):
diff --git a/manimlib/mobject/types/vectorized_mobject.py b/manimlib/mobject/types/vectorized_mobject.py
index e302123c..d1742709 100644
--- a/manimlib/mobject/types/vectorized_mobject.py
+++ b/manimlib/mobject/types/vectorized_mobject.py
@@ -149,6 +149,7 @@ class VMobject(Mobject):
                   stroke_opacity=None,
                   stroke_rgba=None,
                   stroke_width=None,
+                  stroke_background=True,
                   gloss=None,
                   shadow=None,
                   recurse=True):
@@ -163,13 +164,17 @@ class VMobject(Mobject):
 
         if stroke_rgba is not None:
             self.data['stroke_rgba'] = resize_with_interpolation(stroke_rgba, len(fill_rgba))
-            self.set_stroke(width=stroke_width)
+            self.set_stroke(
+                width=stroke_width,
+                background=stroke_background,
+            )
         else:
             self.set_stroke(
                 color=stroke_color,
                 width=stroke_width,
                 opacity=stroke_opacity,
                 recurse=recurse,
+                background=stroke_background,
             )
 
         if gloss is not None:
@@ -183,6 +188,7 @@ class VMobject(Mobject):
             "fill_rgba": self.data['fill_rgba'],
             "stroke_rgba": self.data['stroke_rgba'],
             "stroke_width": self.data['stroke_width'],
+            "stroke_background": self.draw_stroke_behind_fill,
             "gloss": self.get_gloss(),
             "shadow": self.get_shadow(),
         }