import 'package:flutter/material.dart';

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

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      theme: ThemeData.dark(),
      home: Scaffold(
        body: Padding(
          padding: const EdgeInsets.all(8.0),
          child: SizedBox(
            width: 250,
            child: Column(
              spacing: 8,
              children: [
                InputDecorator(
                  decoration: InputDecoration(
                    labelText: 'Label text',
                    helper: Container(color: Colors.blueAccent, height: 16, width: 300),
                    border: const OutlineInputBorder(),
                  ),
                ),
                Row(
                  children: [
                    Container(color: Colors.orange, height: 16, width: 16),
                    const Text('← 16'),
                    const Spacer(),
                    const Text('16 →'),
                    Container(color: Colors.orange, height: 16, width: 16),
                  ],
                ),
              ],
            ),
          ),
        ),
      ),
    );
  }
}