different text styles in 1 Text

main.dart

//different text styles in 1 Text 
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,
      home: Scaffold(body: Center(child: 
                                 
            RichText(
            text: TextSpan(
              style: TextStyle(fontSize: 20.0, color: Colors.black), // Standardstil
              children: <TextSpan>[
                TextSpan(text: 'red ', style: TextStyle(color: Colors.red)),
                TextSpan(text: 'bold ', style: TextStyle(fontWeight: FontWeight.bold)),
                TextSpan(text: 'standard '),
                TextSpan(text: 'italic ', style: TextStyle(fontStyle: FontStyle.italic)),
                TextSpan(text: 'underline', style: TextStyle(decoration: TextDecoration.underline))
              ],
            ),
          )
                                 
       )),
    );
  }
}