macos + windows app icon

macos/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json

@@ -1,4 +1,8 @@
 {
+    "info": {
+        "version": 1,
+        "author": "xcode"
+    },
     "images": [
         {
             "size": "16x16",
@@ -60,9 +64,5 @@
             "filename": "app_icon_1024.png",
             "scale": "2x"
         }
-  ],
-  "info" : {
-    "version" : 1,
-    "author" : "xcode"
-  }
+    ]
 }

pubspec.lock

@@ -205,6 +205,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.1"
+  cli_util:
+    dependency: transitive
+    description:
+      name: cli_util
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.3.5"
   clock:
     dependency: transitive
     description:
@@ -494,7 +501,7 @@ packages:
       name: flutter_launcher_icons
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.9.3"
+    version: "0.11.0"
   flutter_libepiccash:
     dependency: "direct main"
     description:

pubspec.yaml

@@ -141,7 +141,7 @@ dev_dependencies:
   integration_test:
       sdk: flutter
   build_runner: ^2.1.7
-  flutter_launcher_icons: ^0.9.3
+  flutter_launcher_icons: ^0.11.0
   hive_generator: ^1.1.2
   dependency_validator: ^3.1.2
   hive_test: ^1.0.1
@@ -160,6 +160,13 @@ flutter_icons:
   image_path_android: assets/icon/app_icon_alpha.png
   image_path_ios: assets/icon/icon.png
   remove_alpha_ios: true
+  windows:
+    generate: true
+    image_path: assets/icon/icon.png
+    icon_size: 48 # min:48, max:256, default: 48
+  macos:
+    generate: true
+    image_path: assets/icon/icon.png
 
 flutter_native_splash:
   image: assets/images/splash.png