diff --git a/aip_site/support/assets/js/proto-syntax.js b/aip_site/support/assets/js/syntax.js
similarity index 55%
rename from aip_site/support/assets/js/proto-syntax.js
rename to aip_site/support/assets/js/syntax.js
index cbca58e..2794d23 100644
--- a/aip_site/support/assets/js/proto-syntax.js
+++ b/aip_site/support/assets/js/syntax.js
@@ -16,20 +16,32 @@
 // This applies special CSS classes to protobuf patterns that are overlooked
 // or insufficiently distinguished by the usual Pygments/Rouge syntax parsers.
 $.when($.ready).then(() => {
+  // -------------
+  // -- Generic --
+  // -------------
+  // De-emphasize semicolon punctuation across the board.
+  $('.highlight .p:contains(;)').each((_, el) => {
+    el = $(el);
+    if (el.text() === ';') {
+      el.addClass('semi');
+    } else if (el.text().match(/[;]$/)) {
+      let txt = el.text();
+      el.text(txt.substring(0, txt.length - 1));
+      $('<span class="p semi">;</span>').insertAfter(el);
+    }
+  });
+
+  // --------------
+  // -- Protobuf --
+  // --------------
   // RPCs are always followed by three names (the RPC name, the request object,
   // and the response object) -- designate those appropriately.
   $('.language-proto .k:contains(rpc)').each((_, el) => {
-    $(el)
-      .nextAll('.n')
-      .slice(1, 3)
-      .addClass('nc');
+    $(el).nextAll('.n').slice(1, 3).addClass('nc');
   });
 
   // Designate message names as such when using them to delcare fields.
-  $('.language-proto .n + .na + .o:contains(=)')
-    .prev()
-    .prev()
-    .addClass('nc');
+  $('.language-proto .n + .na + .o:contains(=)').prev().prev().addClass('nc');
 
   // Colons in protocol buffers always come immediately after property keys.
   $('.language-proto .n + .o:contains(:)')
@@ -39,9 +51,20 @@ $.when($.ready).then(() => {
 
   // The option keyword is always followed by the annotation name.
   $('.language-proto .k:contains(option)').each((_, el) => {
-    $(el)
-      .nextAll('.n')
-      .eq(0)
-      .addClass('protobuf-annotation');
+    $(el).nextAll('.n').eq(0).addClass('protobuf-annotation');
   });
+
+  // ----------------
+  // -- TypeScript --
+  // ----------------
+  // Interfaces are always followed by what are effectively class names.
+  for (let lang of ['typescript', 'ts']) {
+    $(`.language-${lang} .kr:contains(interface)`).each((_, el) => {
+      if ($(el).nextAll('.nb').length > 0) {
+        $(el).nextAll('.nb').slice(0, 1).removeClass('nb').addClass('nc');
+      } else {
+        $(el).nextAll('.nx').slice(0, 1).removeClass('nx').addClass('nc');
+      }
+    });
+  }
 });
diff --git a/aip_site/support/scss/imports/syntax.scss b/aip_site/support/scss/imports/syntax.scss
index 48a8668..94d83e0 100644
--- a/aip_site/support/scss/imports/syntax.scss
+++ b/aip_site/support/scss/imports/syntax.scss
@@ -82,7 +82,9 @@ code,
   }
 
   // Name: Key (.nk)
-  .nk {
+  // Name: Other (.nx)
+  .nk,
+  .nx {
     color: #6a1b9a;
   }
 
@@ -130,6 +132,11 @@ code,
     @extend .k;
   }
 
+  // Punctuation: Semicolons
+  .p.semi {
+    color: $glue-grey-400;
+  }
+
   // --------
   // Generics
   // --------
diff --git a/aip_site/support/templates/aip.html.j2 b/aip_site/support/templates/aip.html.j2
index de0a6e6..e3cbd20 100644
--- a/aip_site/support/templates/aip.html.j2
+++ b/aip_site/support/templates/aip.html.j2
@@ -5,7 +5,7 @@ AIP-{{ aip.id }}: {{ aip.title }}
 {%- endblock %}
 
 {% block js %}
-<script type="text/javascript" src="{{ site.relative_uri }}/assets/js/proto-syntax.js"></script>
+<script type="text/javascript" src="{{ site.relative_uri }}/assets/js/syntax.js"></script>
 {% if 'js_scripts' in aip.config -%}
 {% for js_script in aip.config.js_scripts -%}
 <script type="text/javascript" src="{{ site.relative_uri }}{{ js_script }}?v={{ site.revision }}"></script>