openproject/frontend/app/components/inplace-edit/field-templates/edit/boolean.html

<div class="switch">
  <label
    class="hidden-for-sighted"
    for="inplace-edit--write-value--{{::field.name}}">
      {{::field.getLabel()}}
  </label>
  <input type="checkbox"
         class="focus-input"
         id="inplace-edit--write-value--{{::field.name}}"
         name="value"
         ng-disabled="fieldController.state.isBusy"
         title="{{ fieldController.editTitle }}"
         ng-model="field.value" />
</div>