From 752574a5424f69202d69d8a78dcb2856d13330ed Mon Sep 17 00:00:00 2001
From: BDisp <bd.bdisp@gmail.com>
Date: Fri, 10 Mar 2023 19:30:04 +0000
Subject: [PATCH] Prevents null value.

---
 Terminal.Gui/Windows/MessageBox.cs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Terminal.Gui/Windows/MessageBox.cs b/Terminal.Gui/Windows/MessageBox.cs
index 5014336c2..2bdf8efc1 100644
--- a/Terminal.Gui/Windows/MessageBox.cs
+++ b/Terminal.Gui/Windows/MessageBox.cs
@@ -290,8 +290,8 @@ namespace Terminal.Gui {
 
 			if (useErrorColors) {
 				d.ColorScheme = Colors.Error;
-				border.BorderBrush = Colors.Error.Normal.Foreground;
-				border.Background = Colors.Error.Normal.Background;
+				d.Border.BorderBrush = Colors.Error.Normal.Foreground;
+				d.Border.Background = Colors.Error.Normal.Background;
 			} else {
 				d.ColorScheme = Colors.Dialog;
 				d.Border.BorderBrush = Colors.Dialog.Normal.Foreground;