The Upload Noseart button can be used by the squad CO to upload a 64x64 noseart graphic. Graphics are not displayed in the game nor on the web page until they have been reviewed by the HTC staff. The transparency color to use in order to make your noseart blend into the plane is {127, 127, 127}.
I use the basic white in ms paint, and it is transparent.
Originally posted by SFCHONDO The transparent background (in the nose art i made for the squad I am in) is: 176 176 176. And it is transparent in the game. I did the 127 127 127 1st and as with yours, it did not work. Amazed they haven't updated that info in the help file to show the correct numbers. Nose Art info from Help File