diff --git a/assets/icon-256.png b/assets/icon-256.png
new file mode 100644
index 0000000000000000000000000000000000000000..47946de0f5a281f9eb65ed48cd755e5ae0a7da72
Binary files /dev/null and b/assets/icon-256.png differ
diff --git a/assets/manifest.json b/assets/manifest.json
index e81afbb997e8c82dd2a6c65a38dd4fc46abc3556..f572b5c161714d2e484d8af3eacd982275b255a1 100644
--- a/assets/manifest.json
+++ b/assets/manifest.json
@@ -8,6 +8,11 @@
       "type": "image/png",
       "sizes": "192x192"
     },
+    {
+      "src": "local/@dbp-topics/signature/icon-256.png",
+      "type": "image/png",
+      "sizes": "256x256"
+    },
     {
       "src": "local/@dbp-topics/signature/icon-512.png",
       "type": "image/png",