scripts.html

<script defer src="https://cdn.jsdelivr.net/npm/katex@0.13.13/dist/katex.min.js" integrity="sha384-pK1WpvzWVBQiP0/GjnvRxV4mOb0oxFuyRxJlk6vVw146n3egcN5C925NCP7a7BY8" crossorigin="anonymous"></script>

<script type="text/javascript">
  var $document = $(document);
  $document.ready(function() {
    //render maths with KaTeX
    $('eq').map(function() {
      var display = (this.getAttribute('env') == "displaymath");
      katex.render(this.textContent, this, {displayMode: display, fleqn: true, throwOnError: false});
    });

    //add anchor links to headers and itenv/rmenv
    $('.section h1, .section h2, .section h3, .section h4, .section h5').each(function() {
      anchor = '#' + $(this).parent().attr('id');
      $(this).addClass("hasAnchor").prepend('<a href="' + anchor + '" class="anchor"></a>');
    });
    $('.itenv, .rmenv, .theorem, .lemma, .corollary, .proposition, .conjecture, .definition, .example, .exercise, .hypothesis').each(function() {
      if ($(this).attr('id') !== undefined) {
        anchor = '#' + $(this).attr('id');
        $(this).addClass("hasAnchor").prepend('<a href="' + anchor + '" class="anchor"></a>');
      };
    });

    //customise the header
    $('div.font-settings button.size-3').map(function() {
      // this.setAttribute("class", "button size-2")
      // if (this.innerText == "Sepia") {
        // this.setAttribute("style", "display: none;");
      // }
      if (this.innerText == "White") {
        this.innerText = "Light";
      }
      if (this.innerText == "Night") {
        this.innerText = "Dark";
      }
    });
    // (remove the <a> tag from the title)
    // $('.book .book-header h1')[0].innerHTML = $('.book .book-header h1')[0].innerText
  });
</script>