diff --git a/images/icon_128.png b/images/icon_128.png
index 6c1ad395..c3b3f31d 100644
Binary files a/images/icon_128.png and b/images/icon_128.png differ
diff --git a/images/icon_16.png b/images/icon_16.png
index 2a9f3d20..87951417 100644
Binary files a/images/icon_16.png and b/images/icon_16.png differ
diff --git a/images/icon_256.png b/images/icon_256.png
new file mode 100644
index 00000000..42971f7c
Binary files /dev/null and b/images/icon_256.png differ
diff --git a/images/icon_32.png b/images/icon_32.png
index 43d12c35..e1036759 100644
Binary files a/images/icon_32.png and b/images/icon_32.png differ
diff --git a/images/icon_48.png b/images/icon_48.png
index abd218fe..4dc19c4d 100644
Binary files a/images/icon_48.png and b/images/icon_48.png differ
diff --git a/manifest.json b/manifest.json
index c35557ba..81a477a2 100644
--- a/manifest.json
+++ b/manifest.json
@@ -19,7 +19,8 @@
       "16": "images/icon_16.png",
       "32": "images/icon_32.png",
       "48": "images/icon_48.png",
-      "128": "images/icon_128.png"
+      "128": "images/icon_128.png",
+      "256": "images/icon_256.png"
     },
 
     "app": {