Well a day after the Demo comes out I spent 5 minutes finding out how to mod the empire graphics. Of course making the ships isn't easy, but it is quite easy to create new flags. Turns out black is the transparency. So heres my rough Klingon symbols. The ship and fleet are pasted in but it's all in game.
Noble: you can probably get around that by using 1,1,1 instead of 0,0,0 as a color. It'll be so dark no one could tell the difference, but to SE5 its not REALLY black.
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Phoenix-D
I am not senile. I just talk to myself because the rest of you don't provide adequate conversation.
-Digger