--- a/LuaAPI.wiki	Tue Jul 28 10:17:08 2015 +0000
+++ b/LuaAPI.wiki	Tue Jul 28 11:05:36 2015 +0000
@@ -926,7 +926,7 @@
 Display an event text in the upper part of the screen. The text will be white and the caption group will be `capgrpMessage`.
 
 === <tt>!AddCaption(text, color, captiongroup)</tt> ===
-Display an event text in the upper part of the screen with the specified [LuaAPI#Color color] and caption group.
+Display an event text in the upper part of the screen with the specified [LuaAPI#Color color] (4 bytes, the 4th byte is for transparency) and caption group.
 
 || *`captiongroup`* || *Meaning* ||
 || `capgrpGameState` || Used for important global game events, like Sudden Death ||