bat-8.x-1.x-dev/modules/bat_event/bat_event.libraries.yml

color:
  version: VERSION
  js:
    js/bat_color.js: {}
  dependencies:
    - core/jquery.farbtastic

bat_event:
  version: VERSION
  js:
    assets/js/bat_event.js: {}
  css:
    theme:
      assets/css/bat_event.css: {}