ctor('.quarto-color-scheme-toggle') === null) {
      const a = window.document.createElement('a');
      a.classList.add('top-right');
      a.classList.add('quarto-color-scheme-toggle');
      a.href = "";
      a.onclick = function() { try { window.quartoToggleColorScheme(); } catch {} return false; };
      const i = window.document.createElement("i");
      i.classList.add('bi');
      a.appendChild(i);
      window.document.body.appendChild(a);
    }
    setColorSchemeToggle(hasAlternateSentinel())
  