code: public static String decode(Style style) {
  		if (style != null) {
  			if (style instanceof ShapeStyle) {
  				return decode((ShapeStyle) style);
  			} else if (style instanceof FontStyle) {
  				return decode((FontStyle) style);
  			} else if (style instanceof PictureStyle) {
  				return decode((PictureStyle) style);
  			}
  		}
  		return "";
  	}
docs: Return the CSS equivalent of the Style object.
  @param style
  @return