wxt-8.x-3.011/modules/custom/wxt_ext/wxt_ext_breadcrumb/wxt_ext_breadcrumb.routing.yml

wxt_ext_breadcrumb.settings_form:
  path: '/admin/config/wxt/wxt_ext_breadcrumb'
  defaults:
    _title: 'WxT Breadcrumbs'
    _form: '\Drupal\wxt_ext_breadcrumb\Form\BreadcrumbsForm'
  requirements:
    _permission: 'administer wxt_ext_breadcrumb'