media_directories-2.x-dev/media_directories.routing.yml

media_directories.config_form:
  path: '/admin/config/media/media_directories'
  defaults:
    _form: '\Drupal\media_directories\Form\MediaDirectoriesConfigForm'
    _title: 'Media directories settings'
  requirements:
    _permission: 'administer site configuration'
  options:
    _admin_route: TRUE