diff --git a/public/images/apple-touch-icon.png b/public/images/apple-touch-icon.png
index b58a79b..0f8fd9d 100644
Binary files a/public/images/apple-touch-icon.png and b/public/images/apple-touch-icon.png differ
diff --git a/public/images/favicon-32x32.png b/public/images/favicon-32x32.png
index 28e1e2b..e540686 100644
Binary files a/public/images/favicon-32x32.png and b/public/images/favicon-32x32.png differ
diff --git a/public/images/favicon.ico b/public/images/favicon.ico
index 92a6b61..062d8ff 100644
Binary files a/public/images/favicon.ico and b/public/images/favicon.ico differ
diff --git a/public/images/hanzigraph-192x192.png b/public/images/hanzigraph-192x192.png
index 034018d..b44abd2 100644
Binary files a/public/images/hanzigraph-192x192.png and b/public/images/hanzigraph-192x192.png differ
diff --git a/public/images/hanzigraph-512x512.png b/public/images/hanzigraph-512x512.png
index d2ba70b..fb1a7a0 100644
Binary files a/public/images/hanzigraph-512x512.png and b/public/images/hanzigraph-512x512.png differ
diff --git a/public/manifest.json b/public/manifest.json
index b581423..bc7157f 100644
--- a/public/manifest.json
+++ b/public/manifest.json
@@ -10,12 +10,14 @@
         {
             "src": "images/hanzigraph-192x192.png",
             "sizes": "192x192",
-            "type": "image/png"
+            "type": "image/png",
+            "purpose": "any maskable"
         },
         {
             "src": "images/hanzigraph-512x512.png",
             "sizes": "512x512",
-            "type": "image/png"
+            "type": "image/png",
+            "purpose": "any maskable"
         }
     ],
     "shortcuts": [