seeds_ui-1.0.x-dev/subtheme/THEMENAME.libraries.yml

THEMENAME_ui:
  js:
    js/main.js: {}

style-ltr:
  css:
    component:
      dist/css/style.min.css: {}

style-rtl:
  css:
    component:
      dist/css/style.rtl.min.css: {}