MFSSolid(startColor:RGBA, endColor:RGBA)
MFSLinearGradient(startMatrix:Matrix, endMatrix:Matrix, gradients:Array<MorphGradient>)
MFSRadialGradient(startMatrix:Matrix, endMatrix:Matrix, gradients:Array<MorphGradient>)
MFSBitmap(cid:Int, startMatrix:Matrix, endMatrix:Matrix, repeat:Bool, smooth:Bool)