OptionalambientOptionalcolorLight colour of the environment this mode renders, multiplied with the preview scene's own colour
OptionalfacesShade of each cardinal direction, for cardinal modes
OptionallightsThe two light directions, for directional modes. They do not need to be normalized
OptionalnameDisplay name of the shading mode
OptionalpowerHow much the lights contribute, for directional modes
OptionaltypeID of the shading type that calculates the shade
Shade of a face that no light reaches, for
directionalmodes