diff --git a/.changeset/large-rules-fry.md b/.changeset/large-rules-fry.md
new file mode 100644
index 0000000..8aa6f71
--- /dev/null
+++ b/.changeset/large-rules-fry.md
@@ -0,0 +1,5 @@
+---
+"ember-showdown-shikiji": minor
+---
+
+feat: add ribbons
diff --git a/ember-showdown-shikiji/src/styles/shikiji.css b/ember-showdown-shikiji/src/styles/shikiji.css
index 84d9613..bcd6d0b 100644
--- a/ember-showdown-shikiji/src/styles/shikiji.css
+++ b/ember-showdown-shikiji/src/styles/shikiji.css
@@ -1,7 +1,8 @@
 :root {
-  --code-background-color: #1E1E1E;
+  --code-background-color: #1e1e1e;
   --code-line-numbers-color: rgb(115 138 148 / 60%);
   --spacing-1_5: 0.75rem;
+  --ribbon-indent: var(--spacing-1);
 }
 
 pre.shiki {
@@ -19,6 +20,7 @@ pre.shiki {
 }
 
 .filename {
+  position: relative;
   padding: var(--spacing-1_5) var(--spacing-2);
   background-color: var(--code-background-color);
   color: var(--color-gray-300);
@@ -49,14 +51,78 @@ code.line-numbers .line::before {
   color: var(--code-line-numbers-color);
 }
 
+/* Ribbons */
+.filename.javascript::after,
+.filename.js::after,
+.filename.glimmer-js::after,
+.filename.gjs::after,
+.filename.typescript::after,
+.filename.ts::after,
+.filename.glimmer-ts::after,
+.filename.gts::after,
+.filename.handlebars::after,
+.filename.hbs::after {
+  position: absolute;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  top: var(--radius-lg);
+  bottom: var(--radius-lg);
+  right: 0;
+  padding-left: var(--spacing-3);
+  padding-right: var(--spacing-2);
+  color: var(--code-background-color);
+  font-size: var(--font-size-sm);
+  font-weight: var(--font-weight-3);
+  clip-path: polygon(
+    0 0,
+    100% 0,
+    100% 100%,
+    0 100%,
+    0 calc(100%),
+    var(--ribbon-indent) 50%,
+    0 0
+  );
+}
+
+.filename.javascript::after,
+.filename.js::after {
+  content: 'JS';
+  background-color: #f5e090;
+}
+
+.filename.typescript::after,
+.filename.ts::after {
+  content: 'TS';
+  background-color: #8fc2f5;
+}
+
+.filename.glimmer-js::after,
+.filename.gjs::after {
+  content: 'GJS';
+  background-color: #f5e090;
+}
+
+.filename.glimmer-ts::after,
+.filename.gts::after {
+  content: 'GTS';
+  background-color: #8fc2f5;
+}
+
+.filename.handlebars::after,
+.filename.hbs::after {
+  content: 'HBS';
+  background-color: #c3f590;
+}
+
 /* Line highlighting */
 .shiki .line.remove {
-  background-color: rgba(244, 63, 94, .16);
+  background-color: rgba(244, 63, 94, 0.16);
   opacity: 0.8;
 }
 
 .shiki .line.add {
-  background-color: rgba(16, 185, 129, .16);
+  background-color: rgba(16, 185, 129, 0.16);
 }
 
 .shiki code > .line {
diff --git a/test-app/public/example.md b/test-app/public/example.md
index a562c84..0320795 100644
--- a/test-app/public/example.md
+++ b/test-app/public/example.md
@@ -15,7 +15,7 @@ let myElement = $('.my-element');
 
 It even supports template tag components via `gjs` or `gts`:
 
-```gjs
+```gjs {data-filename=app/components/hello.gjs}
 import { on } from '@ember/modifier';
 import FancyButton from './fancy-button';
 function greet() {