diff --git a/manifest.json b/manifest.json
index ab649c9..ad85d5b 100644
--- a/manifest.json
+++ b/manifest.json
@@ -37,8 +37,9 @@
   ],
   "browser_action": {
     "default_icon": {
-      "19": "icons/icon-19.png",
-      "38": "icons/icon-38.png"
+      "16": "icons/favicon-16x16.png",
+      "32": "icons/favicon-32x32.png",
+      "96": "icons/favicon-96x96.png"
     },
     "default_title": "Shikiryu Bookmarklet",
     "default_popup": "popup.html"
diff --git a/src/icons/favicon-16x16.png b/src/icons/favicon-16x16.png
index 62d90d4..81e9d09 100644
Binary files a/src/icons/favicon-16x16.png and b/src/icons/favicon-16x16.png differ
diff --git a/src/icons/favicon-32x32.png b/src/icons/favicon-32x32.png
index e9ba813..2073906 100644
Binary files a/src/icons/favicon-32x32.png and b/src/icons/favicon-32x32.png differ
diff --git a/src/icons/favicon-96x96.png b/src/icons/favicon-96x96.png
index dd47c12..834cfb6 100644
Binary files a/src/icons/favicon-96x96.png and b/src/icons/favicon-96x96.png differ
diff --git a/src/icons/icon-128.png b/src/icons/icon-128.png
index b621f81..7db1bc5 100644
Binary files a/src/icons/icon-128.png and b/src/icons/icon-128.png differ
diff --git a/src/icons/icon-16.png b/src/icons/icon-16.png
index 20fa497..81e9d09 100644
Binary files a/src/icons/icon-16.png and b/src/icons/icon-16.png differ
diff --git a/src/icons/icon-19.png b/src/icons/icon-19.png
index d04e84d..3f34fec 100644
Binary files a/src/icons/icon-19.png and b/src/icons/icon-19.png differ
diff --git a/src/icons/icon-38.png b/src/icons/icon-38.png
index d4d8a93..ed5b3e5 100644
Binary files a/src/icons/icon-38.png and b/src/icons/icon-38.png differ
diff --git a/src/icons/icon-64.png b/src/icons/icon-64.png
index df9b2cc..ab719d1 100644
Binary files a/src/icons/icon-64.png and b/src/icons/icon-64.png differ