Add IconButtonTheme

[cedvdb]

Similar to ElevatedButtonTheme, TextButtonTheme, It would be nice to have IconButtonTheme, to style different icon buttons in a sliver app bar for example.

import 'package:flutter/material.dart';

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      theme: ThemeData.dark(useMaterial3: true),
      debugShowCheckedModeBanner: false,
      home: Scaffold(
        appBar: AppBar(),
        body: Center(
          child: MyWidget(),
        ),
      ),
    );
  }
}

class MyWidget extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Theme(
      data: Theme.of(context).copyWith(
        elevatedButtonTheme: ElevatedButtonThemeData(
          style: const ButtonStyle(
            backgroundColor: MaterialStatePropertyAll(Colors.orange),
          ),
        ),
        
      ),
      child: Column(
        children: [
          IconButton(
            onPressed: () {},
            icon: const Icon(Icons.more_vert),
          ),
          IconButton(
            style: const ButtonStyle(
              backgroundColor: MaterialStatePropertyAll(Colors.orange),
            ),
            onPressed: () {},
            icon: const Icon(Icons.more_vert),
          ),
          ElevatedButton(
            onPressed: () {},
            child: const Icon(Icons.more_vert),
          ),
        ],
      ),
    );
  }
}

[darshankawar]

@cedvdb
Check this merged PR and see if it addresses your proposal or not.

[github-actions]

Without additional information, we are unfortunately not sure how to resolve this issue. We are therefore reluctantly going to close this bug for now.
If you find this problem please file a new issue with the same description, what happens, logs and the output of 'flutter doctor -v'. All system setups can be slightly different so it's always better to open new issues and reference the related ones.
Thanks for your contribution.

[github-actions]

This thread has been automatically locked since there has not been any recent activity after it was closed. If you are still experiencing a similar issue, please open a new bug, including the output of flutter doctor -v and a minimal reproduction of the issue.