code: public void setSelectedTextFormat(final SelectedTextFormat format) {
          if (format != null)
              attrMixin.setAttribute(SELECTED_TEXT_FORMAT, format.getFormat());
          else
              attrMixin.removeAttribute(SELECTED_TEXT_FORMAT);
      }
docs: Specifies how the selection is displayed with a multiple select.<br>
  <br>
  Defaults to {@link SelectedTextFormat#VALUES}.
  
  @param format
  @see SelectedTextFormat