AcGiVisualStyleProperties::FaceColorMode Enumeration

enum FaceColorMode {
  kNoColorMode,
  kObjectColor,
  kBackgroundColor,
  kMono,
  kTint,
  kDesaturate
};

acgivisualstyle.h

Members	Description
kNoColorMode	No modifications are to be applied to the faces.
kObjectColor	Apply the color of the drawable object to the faces of the object.
kBackgroundColor	Apply the display background color to the faces.
kMono	All faces are treated as having a specific color, resulting in a "monochromatic" effect.
kTint	All faces have the Hue and Saturation values of their color mapped to the Hue and Saturation values of a specific color, resulting in a "tinted" effect. The luminance value remains unchanged.
kDesaturate	Apply a desaturation percentage to the diffuse color of a material.

Describes modifications that affect the color of a face before any lighting and shading calculations have been performed.