WoW:UITYPE AlphaMode
AlphaMode is an attribute of textures. Nearly all alphaModes used in the default UI are "ADD."
From a post by Slouken on 1/19/06, the alphaModes and their meaning:
- "DISABLE" - opaque texture
- "BLEND" - normal blending
- "ALPHAKEY" - 1-bit alpha
- "ADD" - additive blend
- "MOD" - modulating blend