DAZ Studio, as well as many other renderers implement specularity and reflections to allow for highlights. This is especially true with eye and hair textures. Textures that have painted on highlights defeat the ability of these renderers to create natural highlights. This is something that should be considered when creating textures.

Since Poser files can be imported into other rendering programs that can create highlights, it would be appreciated if textures with and without highlights were included in a texture package. If that is not possible then the highlights could be included as a seperate image that can be layered over the texture in PhotoShop or Paint Shop Pro.