docs: function (newIcon) {
  
              // check if initialization was successful
              if (!this._iconInfo) {
                  return;
              }
  
              var iconInfo = this._getIconInfo(newIcon);
              // check
              if (iconInfo) {
                  var domElt = this.getDom();
                  domElt.style.cssText = this._getIconStyle(iconInfo);
                  domElt.className = this._getIconClasses(iconInfo);
              }
  
              this._iconInfo = iconInfo;
          }