code: function loadCss() {
          var linkElm, contentCss = editor.settings.codesample_content_css;
  
          if (editor.inline && addedInlineCss) {
            return;
          }
  
          if (!editor.inline && addedCss) {
            return;
          }
  
          if (editor.inline) {
            addedInlineCss = true;
          } else {
            addedCss = true;
          }
  
          if (contentCss !== false) {
            linkElm = editor.dom.create('link', {
              rel: 'stylesheet',
              href: contentCss ? contentCss : pluginUrl + '/css/prism.css'
            });
  
            editor.getDoc().getElementsByTagName('head')[0].appendChild(linkElm);
          }
        }
docs: Todo: use a proper css loader here