onsen-1.0.x-dev/onsen.routing.yml

onsen.demo:
  path: '/onsen/demo'
  defaults:
    _controller: '\Drupal\onsen\Controller\Demo::demo'
    _title: 'Onsen Demo'
  requirements:
    _permission: 'access content'

onsen.settings:
  path: '/admin/config/onsen/settings'
  defaults:
    _form: '\Drupal\onsen\Form\OnsenSettingsForm'
    _title: 'Onsen Setting form'
  requirements:
    _permission: 'administer site configuration'