diff --git a/icon-mask.png b/icon-mask.png
new file mode 100644
index 0000000..7867868
Binary files /dev/null and b/icon-mask.png differ
diff --git a/manifest.webmanifest b/manifest.webmanifest
index 5ff8ac9..c6ada56 100644
--- a/manifest.webmanifest
+++ b/manifest.webmanifest
@@ -1,6 +1,7 @@
 {
   "icons": [
     { "src": "/icon-192.png", "type": "image/png", "sizes": "192x192" },
+    { "src": "/icon-mask.png", "type": "image/png", "sizes": "512x512", "purpose": "maskable" },
     { "src": "/icon-512.png", "type": "image/png", "sizes": "512x512" }
   ]
 }
\ No newline at end of file