From 059ba23f728496d0ed6f9fe48104e3bb79fdbd29 Mon Sep 17 00:00:00 2001
From: Hugo Locurcio <hugo.locurcio@hugo.pro>
Date: Mon, 25 Oct 2021 16:52:58 +0200
Subject: [PATCH] Document `Image.FORMAT_R8` stores in alpha channel instead in
 GLES2

---
 doc/classes/Image.xml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/classes/Image.xml b/doc/classes/Image.xml
index 60cc13fb628..101fe309d6d 100644
--- a/doc/classes/Image.xml
+++ b/doc/classes/Image.xml
@@ -434,6 +434,7 @@
 		</constant>
 		<constant name="FORMAT_R8" value="2" enum="Format">
 			OpenGL texture format [code]RED[/code] with a single component and a bitdepth of 8.
+			[b]Note:[/b] When using the GLES2 backend, this uses the alpha channel instead of the red channel for storage.
 		</constant>
 		<constant name="FORMAT_RG8" value="3" enum="Format">
 			OpenGL texture format [code]RG[/code] with two components and a bitdepth of 8 for each.