Darker bricks/prints?
A quick fix for the letters would be to make the prints black, not white.
Lighting does not effect the textures because they use the GL_DECAL blending mode. I do not know how to have a texture that shows the vertex color through the alpha channel and still has lighting in fixed function openGL with only one render pass. It might be possible but I don't know how to do it. If you can tell me how, I will gladly implement it.
I like this idea...but can't this be fixed by making your print slightly transparent?I still want prints to have proper lighting however.