nit: added footer with version and github.

popup/popup.css

@@ -612,4 +612,40 @@ body::-webkit-scrollbar-corner,
 
 .exception-remove:hover {
   background: #d00030;
+}
+
+/* Footer Styles */
+.footer {
+  margin-top: 16px;
+  padding: 12px 16px;
+  border-top: 1px solid var(--input-border);
+  background: var(--section-bg);
+}
+
+.footer-content {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  font-size: 0.8em;
+  color: var(--text-color);
+  opacity: 0.7;
+}
+
+.version {
+  font-weight: 500;
+}
+
+.github-link {
+  display: flex;
+  align-items: center;
+  gap: 4px;
+  color: var(--text-color);
+  text-decoration: none;
+  opacity: 0.7;
+  transition: opacity 0.2s ease, color 0.2s ease;
+}
+
+.github-link:hover {
+  opacity: 1;
+  color: var(--accent);
 }

popup/popup.html

@@ -149,6 +149,16 @@
     </div>
   </div>
 
+  <footer class="footer">
+    <div class="footer-content">
+      <span class="version">v<span id="version-number">...</span></span>
+      <a href="https://github.com/obsqrbtz/goose-highlighter" target="_blank" class="github-link">
+        <i class="fa-brands fa-github"></i>
+        <span>GitHub</span>
+      </a>
+    </div>
+  </footer>
+
   <script type="module" src="../dist/popup/popup.js"></script>
 </body>
 

src/popup/popup.ts

@@ -15,8 +15,17 @@ function localizePage(): void {
   });
 }
 
+function displayVersion(): void {
+  const manifest = chrome.runtime.getManifest();
+  const versionElement = document.getElementById('version-number');
+  if (versionElement && manifest.version) {
+    versionElement.textContent = manifest.version;
+  }
+}
+
 document.addEventListener('DOMContentLoaded', async () => {
   localizePage();
+  displayVersion();
   const controller = new PopupController();
   await controller.initialize();
 });