TBGRABufferedGradient
TBGRAConstantScanner
TBGRAGradientScanner
TBGRAGradientTriangleScanner
TBGRAHueGradient
TBGRAMultiGradient
TBGRAOpacityScanner
TBGRARandomScanner
TBGRASimpleGradient
TBGRASimpleGradientWithGammaCorrection
TBGRASimpleGradientWithoutGammaCorrection
TBGRASolidColorMaskScanner
TBGRATextureMaskScanner