import 'package:flutter/material.dart';

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

class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
        title: 'Flutter Demo',
        theme: ThemeData(
          primarySwatch: Colors.blue,
        ),
        home: Material(
          child: SizedBox(
            height: 100,
            width: 100,
            child: Container(
              alignment: Alignment.center,
              decoration: ShapeDecoration(
                  color: Colors.white,
                  shape: StarBorder(
                    side: BorderSide(
                        color: Colors.yellow.withOpacity(0.5), width: 10),
                  ).lerpTo(
                      RoundedRectangleBorder(
                          side: BorderSide(
                              color: Colors.red.withOpacity(0.5), width: 10)),
                      0.5)!),
            ),
          ),
        ));
  }
}