arent menubar item.</li>
                </ul>
              </td>
            </tr>
            <tr data-test-id="submenu-left-arrow">
              <th>
                <kbd>Left Arrow</kbd>
              </th>
              <td>
                <ul>
                  <li>Closes submenu.</li>
                  <li>Moves focus to previous item in the menubar.</li>
                  <li>Opens submenu of newly focused menubar item, keeping focus on that parent menubar item.</li>
                </ul>
       