material_base-8.x-2.x-dev/themes/material_base_subtheme/THEMENAME.libraries.yml

theme:
  css:
    theme:
      dist/css/theme.css: { minified: true, weight: 11 }
  js:
    dist/js/theme.js: { minified: true }
  dependencies:
    - core/drupal
    - core/once

mdc:
  css:
    theme:
      dist/css/mdc.css: { minified: true, weight: 21 }
  js:
    https://unpkg.com/material-components-web@14.0.0/dist/material-components-web.min.js: { type: external, minified: true, weight: -1 }
    dist/js/mdc.js: { minified: true }
  dependencies:
    - core/drupal
    - core/once

fonts:
  css:
    component:
      dist/css/fonts.css: { minified: true }