crossword-8.x-1.x-dev/modules/crossword_pseudofields/crossword_pseudofields.routing.yml

crossword_pseudofields.settings:
  path: '/admin/config/content/crossword-pseudofields'
  defaults:
    _form: '\Drupal\crossword_pseudofields\Form\CrosswordPseudofieldsConfigForm'
    _title: 'Crossword Pseudofields'
  requirements:
    _permission: 'configure crossword pseudofields'