shape property from ExpansionTileTheme is not use  #129785

import 'package:flutter/material.dart';

/// Flutter code sample for [ExpansionTile].

void main() => runApp(const ExpansionTileApp());

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

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      theme: ThemeData(useMaterial3: true),
      home: Scaffold(
        appBar: AppBar(title: const Text('ExpansionTile Sample')),
        body: const ExpansionTileExample(),
      ),
    );
  }
}

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

  @override
  Widget build(BuildContext context) {
    return Column(
      children: <Widget>[
        ExpansionTileTheme(
          data: ExpansionTileThemeData(
            shape: Border.all(color: Colors.red),
          ),
          child: const ExpansionTile(
            title: Text('ExpansionTile 1'),
            initiallyExpanded: true,
            children: <Widget>[
              ListTile(title: Text('This is tile number 1')),
            ],
          ),
        ),
        ExpansionTile(
          title: const Text('ExpansionTile 2'),
          shape: Border.all(color: Colors.red),
          initiallyExpanded: true,
          children: const <Widget>[
            ListTile(title: Text('This is tile number 2')),
          ],
        ),
      ],
    );
  }
}