I'm trying to make a texture to work in WoW but photoshop is too complicated for me. All I want to have is a small sharp edged square to use as an aura. I tried messing around with layers but I just don't understand it. Can anyone help me make one?

I've been inspired from a certain shaman UI I saw a long time ago, which had tiny square auras appear to alert for maelstrom.

Edit: I found the shaman UI with the exact square aura I wanted: http://www.youtube.com/watch?v=jrwU5McFvYg
Edit2: Nevermind, I have found the texture archived in here http://www.wowinterface.com/download...o.php?id=14256 .
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