@Labarr, I too, always get confused as what file type to use in order to make the spray work in transparent. I compressed all the files in one .zip file so you can either drop them all in your materials/vgui/logos folder or do it one by one and see which one works. I've created a vmt/vtf from both file types; TGA & PNG http://www.filedropper.com/labear-spray