code: public void  setSVG(SVG svg, String css)
     {
        if (svg == null)
           throw new IllegalArgumentException("Null value passed to setSVG()");
  
        this.svg = svg;
        this.renderOptions.css(css);
  
        doRender();
     }
docs: Directly set the SVG and the CSS.
  @param svg An {@code SVG} instance
  @param css Optional extra CSS to apply when rendering
  @since 1.3