custom_elements-8.x-2.x-dev/modules/custom_elements_ui/custom_elements_ui.libraries.yml

drupal.custom_elements_ui:
  version: VERSION
  js:
    js/custom_elements_ui.js: {}
  css:
    theme:
      css/custom_elements_ui.admin.css: {}
  dependencies:
    - core/jquery
    - core/drupal
    - core/drupalSettings
    - core/once
    - core/drupal.ajax
    - core/drupal.dialog