wrap with padding

wrap.dart

import 'package:flutter/material.dart';

const 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(
      color: Colors.amber[200],
      height: 400,
      width: 400,
      child: Stack(children: [
        Positioned(
          right: 0,
          width: 32,
          height: 28,
          top: 0,
          child: Placeholder(color: Colors.black),
        ),
        Positioned.fill(
          child: Wrap(
            spacing: 8.0,
            runSpacing: 4.0,
            runAlignment: WrapAlignment.start,
            alignment: WrapAlignment.end,
//             direction:
            textDirection: TextDirection.rtl,
            children: [
              SizedBox(width: 20),
              Chip(
                avatar: CircleAvatar(
                    backgroundColor: Colors.blue.shade900,
                    child: const Text('AH')),
                label: const Text('lton'),
              ),
              Chip(
                avatar: CircleAvatar(
                    backgroundColor: Colors.blue.shade900,
                    child: const Text('ML')),
                label: const Text('ayette'),
              ),
              Chip(
                avatar: CircleAvatar(
                    backgroundColor: Colors.blue.shade900,
                    child: const Text('ML')),
                label: const Text('fay'),
              ),
              Chip(
                avatar: CircleAvatar(
                    backgroundColor: Colors.blue.shade900,
                    child: const Text('ML')),
                label: const Text('Lafayette'),
              ),
              Chip(
                avatar: CircleAvatar(
                    backgroundColor: Colors.blue.shade900,
                    child: const Text('ML')),
                label: const Text('Lafayette'),
              ),
              Chip(
                avatar: CircleAvatar(
                    backgroundColor: Colors.blue.shade900,
                    child: const Text('ML')),
                label: const Text('Lafay'),
              ),
              Chip(
                avatar: CircleAvatar(
                    backgroundColor: Colors.blue.shade900,
                    child: const Text('ML')),
                label: const Text('ette'),
              ),
              Chip(
                avatar: CircleAvatar(
                    backgroundColor: Colors.blue.shade900,
                    child: const Text('ML')),
                label: const Text('ayette'),
              ),
              Chip(
                avatar: CircleAvatar(
                    backgroundColor: Colors.blue.shade900,
                    child: const Text('ML')),
                label: const Text('ette'),
              ),
              Chip(
                avatar: CircleAvatar(
                    backgroundColor: Colors.blue.shade900,
                    child: const Text('ML')),
                label: const Text('LLL'),
              ),
              Chip(
                avatar: CircleAvatar(
                    backgroundColor: Colors.blue.shade900,
                    child: const Text('ML')),
                label: const Text('Lafayette'),
              ),
              Chip(
                avatar: CircleAvatar(
                    backgroundColor: Colors.blue.shade900,
                    child: const Text('ML')),
                label: const Text('Lafayette'),
              ),
              Chip(
                avatar: CircleAvatar(
                    backgroundColor: Colors.blue.shade900,
                    child: const Text('HM')),
                label: const Text('Mulligan'),
              ),
              Chip(
                avatar: CircleAvatar(
                    backgroundColor: Colors.blue.shade900,
                    child: const Text('JL')),
                label: const Text('Laurens'),
              ),
            ],
          ),
        ),
      ]),
    );
  }
}