docs: function (icon) {
              var iconParts = icon.split(":");
              if (iconParts.length !== 2) {
                  this.$logError(this.ICON_BADLY_FORMATTED, [icon]);
                  return null;
              } else {
                  var iconInfo = aria.widgets.AriaSkinInterface.getIcon(iconParts[0], iconParts[1]);
                  if (!iconInfo) {
                      this.$logError(this.ICON_NOT_FOUND, [icon]);
                      return null;
                  }
                  return iconInfo;
              }
          }