toMultilayerSymbol

Gets a MultilayerPolygonSymbol from a SimpleFillSymbol. This method allows you to create complex and custom symbols with multiple layers of different types of symbology. Simple fill symbol provides a factory of predefined fill styles such as cross and backward_diagonal. This method generates a MultilayerPolygonSymbol with a HatchFillSymbolLayer for any of the styles containing lines, or a SolidFillSymbolLayer if the fill style is SimpleFillSymbolStyle.Solid.