Add VMobject.get_highlight

manimlib/mobject/types/vectorized_mobject.py

@@ -349,6 +349,22 @@ class VMobject(Mobject):
     def get_joint_type(self) -> str:
         return self.joint_type
 
+    def get_highlight(
+        self,
+        stroke_color: Color = WHITE,
+        added_stroke: float = 3.0,
+        opacity: float = 0.75,
+    ) -> VMobject:
+        highlight = self.copy()
+        highlight.set_fill(opacity=0)
+        highlight.set_stroke(
+            color=stroke_color,
+            width=self.get_stroke_width() + added_stroke,
+            opacity=opacity
+        )
+        highlight.add_updater(lambda m: m.move_to(self))
+        return highlight
+
     # Points
     def set_anchors_and_handles(
         self,