{{_sortOrder}}" slot="dropdown-content">
              <template is="dom-repeat" items="[[_sortOptions]]" as="option">
                <paper-item>[[option.name]]</paper-item>
              </template>
            </paper-listbox>
          </paper-dropdown-menu>
          <paper-checkbox noink class="middle-checkbox" checked="{{_reverseOrder}}">
            Reverse order
          </paper-checkbox>
          <paper-input class="right-input input-control"
                       label="Feature search (regex 