From 5240ee1515bbcfc54112fb5f9968edc1aae92056 Mon Sep 17 00:00:00 2001
From: shachar700 <48739719+shachar700@users.noreply.github.com>
Date: Wed, 10 Dec 2025 13:51:47 +0200
Subject: [PATCH] Added comment

---
 src/pokenav_menu_handler_gfx.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/pokenav_menu_handler_gfx.c b/src/pokenav_menu_handler_gfx.c
index a86d0be080..a4cdf48980 100644
--- a/src/pokenav_menu_handler_gfx.c
+++ b/src/pokenav_menu_handler_gfx.c
@@ -1316,6 +1316,9 @@ static void SetupPokenavMenuScanlineEffects(void)
     SetGpuRegBits(REG_OFFSET_WININ, WININ_WIN0_ALL);
     SetGpuRegBits(REG_OFFSET_WINOUT, WINOUT_WIN01_BG_ALL | WINOUT_WIN01_OBJ);
 #ifdef BUGFIX
+    // BUGFIX: Use full register write instead of |=.
+    // SetGpuRegBits left leftover window values from the Party screen,
+    // causing partial/missing glow highlights. SetGpuReg clears them fully.
     SetGpuReg(REG_OFFSET_WIN0V, DISPLAY_HEIGHT);
 #else
     SetGpuRegBits(REG_OFFSET_WIN0V, DISPLAY_HEIGHT);