navigation_extra-1.0.x-dev/navigation_extra.libraries.yml

navigation_extra:
  version: VERSION
  css:
    theme:
      assets/css/navigation_extra.css: {}

navigation_extra_version:
  version: VERSION
  js:
    assets/js/navigation_extra_version.js: {}
  css:
    theme:
      assets/css/navigation_extra_version.css: {}
  dependencies:
    - core/once
    - core/drupalSettings