From 4b066e66da9307337e0e7df574fb96293086a1ad Mon Sep 17 00:00:00 2001
From: Andrew Murray <radarhere@users.noreply.github.com>
Date: Tue, 20 Apr 2021 23:58:52 +1000
Subject: [PATCH] Added info about mode when saving for Windows [ci skip]

---
 src/PIL/IcoImagePlugin.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/PIL/IcoImagePlugin.py b/src/PIL/IcoImagePlugin.py
index 5634bf8e9..ff92390fb 100644
--- a/src/PIL/IcoImagePlugin.py
+++ b/src/PIL/IcoImagePlugin.py
@@ -267,7 +267,8 @@ class IcoImageFile(ImageFile.ImageFile):
     Handles classic, XP and Vista icon formats.
 
     When saving, PNG compression is used. Support for this was only added in
-    Windows Vista.
+    Windows Vista. If you are unable to view the icon in Windows, convert the
+    image to "RGBA" mode before saving.
 
     This plugin is a refactored version of Win32IconImagePlugin by Bryan Davis
     <casadebender@gmail.com>.