add theme color

pubspec.yaml

@@ -23,8 +23,13 @@ dependencies:
   logger: ^1.1.0
   intl: ^0.17.0
   code_editor: ^1.3.1
-  flutter_native_splash: ^1.3.3
+
 dev_dependencies:
+  flutter_native_splash: ^1.3.3
+  flutter_launcher_icons: ^0.9.2
+  change_app_package_name: ^0.1.3
+  flutter_app_name: ^0.1.0
+
   build_runner: ^2.0.0
   json_conversion: ^0.0.4
   flutter_test:
@@ -39,6 +44,15 @@ flutter:
 
   assets:
     - assets/images/
+flutter_app_name:
+  name: "青龙"
+
+flutter_icons:
+  image_path_android: "assets/images/ql.png"
+  image_path_ios: "assets/images/ql.png"
+  android: true # can specify file name here e.g. "ic_launcher"
+  ios: true # can specify file name here e.g. "My-Launcher-Icon"
+
 
 flutter_native_splash: