Uh, i made a custom sky for my map...but i cant get it to work, and i made a "fade screen" for a spell that flashes up when you use it, its cool in game although it doesnt sound cool as i describe it to you
if you want to use ur sky u need to replace another sky so if u wanted to replace the dalaran sky the path would be Environment\Sky\DalaranSky\DalaranSky.blp but u would have to rename ur sky Dalaran Sky
Basically you don't set a sky preference, but do it via triggers. I then imported the file after converting it to a blp under the path environment\sky\outland_sky\outlandskynew.blp. I used the outland sky as the replaced sky. Also, If you want your skies to look nicer I suggest you make them 1024x1024 or 768x768.
