  var ref = document.querySelector("[data-md-component=palette]")
    ref.addEventListener("change", function() {
      var palette = __md_get("__palette")
      if (palette && typeof palette.color === "object") {
        var theme = palette.color.scheme === "slate" ? "dark" : "light"

        /* Instruct Giscus to change theme */
        var frame = document.querySelector(".giscus-frame")
        frame.contentWindow.postMessage(
          { giscus: { setConfig: { theme } } },
          "https://giscus.app"