The Toon shaders have options for transparencies... but i'm right now working to add those material to my app. The picture is only using the "single colors" shader. I didn't use the "Highlight", the "reflective", the "raytrace", the "FX" and the "Texture" shaders. For now, everything is implemented, except the FX and textures shaders. I'm working to add the textures shaders, because the transparency toon shader are essential. Once i have done this, i'll post a screenshot of the same picture (post 12) with the transparency shaders.