From 8ca94173bf2eba92b2eafd77be447afc00778a3f Mon Sep 17 00:00:00 2001
From: Hugo Locurcio <hugo.locurcio@hugo.pro>
Date: Wed, 29 Jul 2020 10:23:10 +0200
Subject: [PATCH] Document the expected window size in Design a title screen

This closes #3800.
---
 getting_started/step_by_step/ui_main_menu.rst | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/getting_started/step_by_step/ui_main_menu.rst b/getting_started/step_by_step/ui_main_menu.rst
index c92cacebf..527b9b61b 100644
--- a/getting_started/step_by_step/ui_main_menu.rst
+++ b/getting_started/step_by_step/ui_main_menu.rst
@@ -120,6 +120,16 @@ center the illustration with a ``CenterContainer``.
 Prepare the Main Menu scene
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
+.. note::
+
+    This tutorial is based on a window size of 1366×768. To change the project's
+    base window size, open **Project > Project Settings** at the top of the
+    editor then change **Display > Window > Size > Width** to ``1366`` and
+    **Display > Window > Size > Height** to ``768``.
+
+    If you forget to change the window size, anchors and containers may not
+    behave as expected.
+
 Let's create the main menu. We'll build it in a single scene. To create
 an empty scene, click on **Scene > New Scene**.