wxt-8.x-3.011/modules/custom/wxt_core/wxt_core.routing.yml

system.404:
  path: '/system/404'
  defaults:
    _controller: '\Drupal\wxt_core\Controller\WxTHttp4xxController:on404'
    _title: 'Page not found'
  requirements:
    # Overrides core native 404 handling
    _access: 'TRUE'

wxt_core.settings:
  path: '/admin/config/wxt'
  defaults:
    _title: WxT
    _controller: '\Drupal\system\Controller\SystemController::systemAdminMenuBlockPage'
  requirements:
    _permission: 'administer site configuration'

wxt4032404.config:
  path: '/admin/config/wxt/4032404'
  defaults:
    _form: '\Drupal\wxt_core\Form\WxT4032404Form'
    _title: '403 to 404 Settings'
  requirements:
    _permission: 'administer site configuration'