title: How can I make TextField's suffix/suffixIcon height resize?
body: <pre><code>import 'package:flutter/material.dart';
  
  void main() =&gt; runApp(MyApp());
  
  class MyApp extends StatelessWidget {
    @override
    Widget build(BuildContext context) {
      return MaterialApp(
        home: SafeArea(
          child: Scaffold(
            body: Column(
              children: [
                Container(
                  color: Colors.orange,
                  child: TextField(
                    decoration: InputDecoration(
                      suffix: IconButton(
                          icon: Icon(Icons.check_circle),
                          onPressed: () {
                            print('222');
                          }),
                    ),
                  ),
                ),
              ],
            ),
          ),
        ),
      );
    }
  }
  </code></pre>
  
  <p>How can I force the <em>check_circle</em> icon to automatically resize to match the height of the actual TextField, i.e., wrt its cursor height?</p>