From 4683b427ee47683623f5a55452b37c03c640f949 Mon Sep 17 00:00:00 2001
From: Max Horn
Date: Mon, 17 Apr 2006 09:31:13 +0000
Subject: Clarify that kFeatureOverlaySupportsAlpha should only be set if at
 least a few bits of alpha are present

svn-id: r21963
---
 common/system.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/common/system.h b/common/system.h
index 1b5781794e..58a9fc822b 100644
--- a/common/system.h
+++ b/common/system.h
@@ -125,6 +125,8 @@ public:
 
 		/**
 		 * Set to true if the overlay pixel format has an alpha channel.
+		 * This should only be set if it offers at least 5-6 bits of accuracy,
+		 * as opposed to a single alpha bit.
 		 */
 		kFeatureOverlaySupportsAlpha
 	};
-- 
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