flutter 상태바/네비게이션바 색상 변경

void main() {
  WidgetsFlutterBinding.ensureInitialized();
  **SystemChrome.setSystemUIOverlayStyle(SystemUiOverlayStyle(
    systemNavigationBarColor: Colors.blue, // navigation bar color
    statusBarColor: Colors.pink, // status bar color
  ));**
  runApp(RainbowDotApp());
}

appBar: AppBar(
  backgroundColor: Colors.red, // status bar color
  brightness: Brightness.light, // status bar brightness
)