For getting the black out, you need to add a texture to the material, and set it to use that alpha, which involves setting the alpha to 0 on the material so it'll use the alpha from the texture. I tried making a step-by-step guide with photos for it, but lost my work halfway through, and now I'm away from my main PC.
For the color itself, I would guess that they just colorized it at runtime, since the images themselves are black & white.
Though I have no idea how to explain it all in Italian. I just got what he wanted from Google Translate
For the color itself, I would guess that they just colorized it at runtime, since the images themselves are black & white.
Though I have no idea how to explain it all in Italian. I just got what he wanted from Google Translate