ModelViewer code doesn't recognize materials

ModelImporter.Load, invoked from the ModelViewer source, doesn't seem to recognize material definitions. All models are either green (no material definition) or Yellow (there is a material definition that references a .MTL file, but the material info is ignored). Am I missing something, or is ModelViewer not meant to recognize different colored material in OBJ files?

The Obj reader should support materials (diffuse, ambient, specular, textures and opacity). You should try to debug the import of the .mtl file. Set a breakpoint in the LoadMaterialLib method. Let us know if there is a bug in the code, and we will correct it.

My bad. Stepping into the code, I saw that there were tabs in the materials file. Still working on lighting, but this problem is solved. Thanks!