Ok I have used a cnc to make back lit lithophanes using corian and another material called candlestone (man made). For those unfamiliar with the process I would need to 3d engrave the material with a Reversed or inverted image. The blacks are white, and the whites are black. Your picture is created by back lighting the corian etching and the depth of material determines the color by regulating the amount of light diffusing through it. My question is would a GF Pro be able to do the 3d engrave in the solid surface material, and would anyone like to venture a guess as to what settings to use.
Corian may be too hard for the Glowforge to engrave deeply enough for a lithophane. (Well, maybe with several passes, but I would expect your image to become more posterized with each pass.) See this thread and this one for examples and the power settings they used.