[rkomar]

I suspect that one or two tiny dents in the light layer is considered to be "normal", so returning it is probably not an option. I don't know if you can fix it, but I doubt it. Any attempt will probably make it worse. The light layer works as a "light pipe" that guides the low angle light over the surface, only letting the light shining more perpendicularly to the surface out. Denting or scratching the surface usually makes more light escape from that area, so that's why it looks brighter. I believe there is also a very fine pattern etched into the light layer for scattering the light more evenly over the whole surface. I can't think of an easy way to return the damaged surface to its previous condition.