o-margin-sidebar .nav-link', false);
      if (alternate) {
        // note: dark is layered on light, we don't disable primary!
        enableStylesheet(alternateStylesheets);
        for (const sheetNode of alternateStylesheets) {
          if (sheetNode.id === "quarto-bootstrap") {
            toggleBodyColorMode(sheetNode);
          }
        }
      } else {
        disableStylesheet(alternateStylesheets);
        enableStylesheet(primaryStylesheets)
        toggleBodyColorPrimary();
      }
      man