docs: public void setTitle(String title, String textcolor) {
      this.title = title;
      if(titlecss == null) {
        titlecss = new CSSClass(this, "text");
        titlecss.setStatement(SVGConstants.CSS_TEXT_ANCHOR_PROPERTY, SVGConstants.CSS_MIDDLE_VALUE);
        titlecss.setStatement(SVGConstants.CSS_FILL_PROPERTY, textcolor);
        titlecss.setStatement(SVGConstants.CSS_FONT_SIZE_PROPERTY, .6 * h);
      }
    }