static var saturation: GraphicsContext .BlendMode
A mode that uses the luminance and hue values of the background with the saturation of the source image.
static var color: GraphicsContext .BlendMode
A mode that uses the luminance values of the background with the hue and saturation values of the source image.
static var luminosity: GraphicsContext .BlendMode
A mode that uses the hue and saturation of the background with the luminance of the source image.