main.dart

import 'package:flutter/material.dart';

final Color darkBlue = Color.fromARGB(255, 18, 32, 47);

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      theme: ThemeData.dark().copyWith(scaffoldBackgroundColor: darkBlue),
      debugShowCheckedModeBanner: false,
      home: Scaffold(
        body: Center(
          child: MyWidget(),
        ),
      ),
    );
  }
}

class MyWidget extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Container(
          width: 100,
          height: 100,
          color: Colors.red,
          child: CircularProgressIndicator(
            value: 0.5,
            backgroundColor: Colors.yellow.withOpacity(0.5),
            valueColor: AlwaysStoppedAnimation<Color>(Colors.yellow),
            strokeWidth: 10,
          ),
        );
  }
}