[lowfighter]

So I went to a "normal" object, namely the german barrack in norway group, which has no transparent parts. With such an object no need to fiddle with the skin background. Just modify the "active" colors in the image . However if I want to work on the damaged object skin (which most often has holes etc) then again I'd stumble on the transparency problem encountered with trees. Anyway, this is cool, because within a ridiculously small amount of time you can get a different variant of the object.