    if (styleSentinel !== null) {
      return styleSentinel === "alternate";
    } else {
      return false;
    }
  }
  const setStyleSentinel = (alternate) => {
    const value = alternate ? "alternate" : "default";
    if (!isFileUrl()) {
      window.localStorage.setItem("quarto-color-scheme", value);
    } else {
      localAlternateSentinel = value;
    }
  }
  const getColorSchemeSentinel = () => {
    if (!isFileUrl()) {
      const storageValue = window.localStorage.getItem("quarto-color-scheme")