In Fig. 8 we show the limb darkening and contrast for a continuum test case with different values of . To compute the limb darkening, we calculate the intensity average over the visible surface for different values of where is the angle between the observer and the normal to the surface. We similarly calculate the contrast as over the visible surface for different . The absolute values of the limb darkening and the contrast depend strongly on , scattering dramatically reduces the contrast and 'flattens' the limb darkening law. Overall, the limb darkening is nearly linear in , as would be expected from a plane parallel atmosphere with grey temperature structure.