docker-compose/asciinema/theme/custom.js

// Pivoine Rose Custom Theme Injector
(function() {
  // Inject custom CSS
  var customCSS = document.createElement('link');
  customCSS.rel = 'stylesheet';
  customCSS.href = '/assets/custom.css';
  document.head.appendChild(customCSS);

  // Inject custom favicon
  var customFavicon = document.createElement('link');
  customFavicon.rel = 'icon';
  customFavicon.type = 'image/svg+xml';
  customFavicon.href = '/images/favicon-custom.svg';
  document.head.appendChild(customFavicon);

  console.log('Pivoine Rose theme loaded');
})();