diff --git a/extension/icons/icon128.png b/extension/icons/icon128.png
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diff --git a/extension/icons/icon16.png b/extension/icons/icon16.png
new file mode 100644
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diff --git a/extension/icons/icon32.png b/extension/icons/icon32.png
new file mode 100644
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diff --git a/extension/icons/icon48.png b/extension/icons/icon48.png
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diff --git a/extension/manifest.json b/extension/manifest.json
index cf6362b..71641af 100644
--- a/extension/manifest.json
+++ b/extension/manifest.json
@@ -1,9 +1,23 @@
 {
   "manifest_version": 3,
   "name": "CC Sidepanel",
-  "version": "0.1.0",
+  "version": "0.2.0",
   "description": "Live window into a Claude Code seat, right in the browser sidebar.",
-  "action": { "default_title": "CC Sidepanel" },
+  "icons": {
+    "16": "icons/icon16.png",
+    "32": "icons/icon32.png",
+    "48": "icons/icon48.png",
+    "128": "icons/icon128.png"
+  },
+  "action": {
+    "default_title": "CC Sidepanel",
+    "default_icon": {
+      "16": "icons/icon16.png",
+      "32": "icons/icon32.png",
+      "48": "icons/icon48.png",
+      "128": "icons/icon128.png"
+    }
+  },
   "side_panel": { "default_path": "sidepanel.html" },
   "background": { "service_worker": "background.js" },
   "permissions": ["sidePanel", "storage"],