From f33b8d1d2f9d37e51eff4ec113373f0c3948d17d Mon Sep 17 00:00:00 2001
From: Grant Sanderson <grant@3blue1brown.com>
Date: Sat, 10 Jun 2023 09:19:32 -0700
Subject: [PATCH] Add stretch_factor in FlashUnder Underline

---
 manimlib/animation/indication.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/manimlib/animation/indication.py b/manimlib/animation/indication.py
index cd01c359..4078078b 100644
--- a/manimlib/animation/indication.py
+++ b/manimlib/animation/indication.py
@@ -278,7 +278,7 @@ class FlashAround(VShowPassingFlash):
 
 class FlashUnder(FlashAround):
     def get_path(self, mobject: Mobject, buff: float) -> Underline:
-        return Underline(mobject, buff=buff)
+        return Underline(mobject, buff=buff, stretch_factor=1.0)
 
 
 class ShowCreationThenDestruction(ShowPassingFlash):