altcolor-1.0.0-beta1/altcolor.libraries.yml

altcolor.admin:
  version: VERSION
  js:
    js/altcolor_admin.js: {}
  dependencies:
    - core/drupal
    - core/drupalSettings
    - core/once

altcolor.preview:
  version: VERSION
  css:
    theme:
      css/altcolor_preview.css: { }
  js:
    js/altcolor_preview.js: {}
  dependencies:
    - altcolor/altcolor.admin