To add a custom decal texture to the game, follow the instructions below.For a simple square decal, create the custom texture in your favorite image editor (ie. Adobe Photoshop, Corel Draw, etc.) Adjust the image size so that it is 64 pixels by 64 pixels square Save the file as a 24-bit bitmap (bmp) file on your hard drive. Make sure there are NO spaces in the name. (ie. star.bmp, yellow_star.bmp) Copy the file to this folder in your Robot Arena 2 installation directory: Infogrames\Robot Arena 2\Texture Library\decals\
Quote from the tutorial that comes with the gameI'm no expert on this however.P.S. don't use square extenders, unless this is a replica
Wouldn't it be easier to export the paintjob and edit it?
Make it a .tga with transparent background.