first commit

build/node_modules/@pwa/manifest/assets/manifest-extra.json

@@ -0,0 +1,27 @@
+{
+  "lang": "en-US",
+  "display": "standalone",
+  "orientation": "natural",
+  "splash_screens": [{
+    "src": "splash/lowres",
+    "sizes": "320x240"
+  }, {
+    "src": "splash/hd_small",
+    "sizes": "1334x750"
+  }, {
+    "src": "splash/hd_hi",
+    "sizes": "1920x1080",
+    "density": 3
+  }],
+  "prefer_related_applications": "true",
+  "related_applications": [{
+    "platform": "play",
+    "url": "https://play.google.com/store/apps/details?id=com.example.app1",
+    "id": "com.example.app1"
+  }, {
+    "platform": "itunes",
+    "url": "https://itunes.apple.com/app/example-app1/id123456789",
+  }, {
+    "platform": "web"
+  }]
+}