From 0da1abc689a07b7d3d09f0bc9fb41f80c9d79375 Mon Sep 17 00:00:00 2001
From: Grant Sanderson <grant@3blue1brown.com>
Date: Thu, 26 Apr 2018 17:11:00 -0700
Subject: [PATCH] add_background_rectangles ->
 add_background_rectangles_to_entries

---
 mobject/matrix.py             | 9 +++++----
 old_projects/eola/chapter3.py | 2 +-
 old_projects/eola/chapter4.py | 2 +-
 3 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/mobject/matrix.py b/mobject/matrix.py
index 5173fa23..58a9f220 100644
--- a/mobject/matrix.py
+++ b/mobject/matrix.py
@@ -40,7 +40,7 @@ def vector_coordinate_label(vector_mob, integer_labels=True,
         vect = np.round(vect).astype(int)
     vect = vect[:n_dim]
     vect = vect.reshape((n_dim, 1))
-    label = Matrix(vect, add_background_rectangles=True)
+    label = Matrix(vect, add_background_rectangles_to_entries=True)
     label.scale(VECTOR_LABEL_SCALE_FACTOR)
 
     shift_dir = np.array(vector_mob.get_end())
@@ -59,7 +59,7 @@ class Matrix(VMobject):
     CONFIG = {
         "v_buff": 0.8,
         "h_buff": 1.3,
-        "add_background_rectangles": False,
+        "add_background_rectangles_to_entries": False,
         "element_to_mobject": TexMobject,
         "element_to_mobject_config": {},
         "element_alignment_corner": DR,
@@ -82,14 +82,15 @@ class Matrix(VMobject):
         self.center()
 
         self.mob_matrix = mob_matrix
-        if self.add_background_rectangles:
+        if self.add_background_rectangles_to_entries:
             for mob in self.elements:
                 mob.add_background_rectangle()
 
     def matrix_to_mob_matrix(self, matrix):
         return np.vectorize(
             lambda e: self.element_to_mobject(
-                e, **self.element_to_mobject_config)
+                e, **self.element_to_mobject_config
+            )
         )(matrix)
 
     def organize_mob_matrix(self, matrix):
diff --git a/old_projects/eola/chapter3.py b/old_projects/eola/chapter3.py
index 4b7d56ed..876f3f56 100644
--- a/old_projects/eola/chapter3.py
+++ b/old_projects/eola/chapter3.py
@@ -887,7 +887,7 @@ class MatrixVectorMultiplication(LinearTransformationScene):
         )
         concrete_matrix = Matrix(
             copy.deepcopy(abstract_matrix),
-            add_background_rectangles = True
+            add_background_rectangles_to_entries = True
         )
         concrete_matrix.to_edge(UP)
         if self.abstract:
diff --git a/old_projects/eola/chapter4.py b/old_projects/eola/chapter4.py
index 833f84c9..b8f70c24 100644
--- a/old_projects/eola/chapter4.py
+++ b/old_projects/eola/chapter4.py
@@ -106,7 +106,7 @@ class FollowLinearCombination(LinearTransformationScene):
             direction = "right", color = Y_COLOR
         )
         vect = self.add_vector(vect_coords)
-        vect_array = Matrix(["x", "y"], add_background_rectangles = True)
+        vect_array = Matrix(["x", "y"], add_background_rectangles_to_entries = True)
         v_equals = TexMobject(["\\vec{\\textbf{v}}", "="])
         v_equals.split()[0].set_color(YELLOW)
         v_equals.next_to(vect_array, LEFT)