クレしんのホラー回って毎回怖い

uhoho-i.dart

import 'package:flutter/material.dart';
import 'package:flutter/rendering.dart';

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

class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

  static const topColor = Color.fromARGB(255, 241, 131, 164);
  static const bottomColor = Color.fromARGB(255, 243, 243, 128);
  static const titleColor = Color.fromARGB(255, 97, 3, 95);

  //let titleColor = Color(red: 0.38, green: 0.01, blue: 0.37)

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      theme: ThemeData(primaryColor: titleColor),
      title: 'クレヨンしんちゃん',
      home: Scaffold(
        appBar: AppBar(),
        body: Container(
          child: Center(
            child: SizedBox(
              width: 400,
              height: 300,
              child: Container(
                decoration: const BoxDecoration(
                  gradient: LinearGradient(
                      begin: Alignment.topCenter,
                      end: Alignment.bottomCenter,
                      colors: <Color>[topColor, bottomColor]),
                ),
                child: Center(
                  child: Column(
                    mainAxisAlignment: MainAxisAlignment.center,
                    crossAxisAlignment: CrossAxisAlignment.start,
                    children: [
                      Text(
                        "かいはつとちゅう",
                        style: Theme.of(context).textTheme.subtitle1,
                      ),
                      Text(
                        "開発途中で",
                        style: Theme.of(context).textTheme.headline4,
                      ),
                      Padding(
                        padding: const EdgeInsets.only(left: 20),
                        child: Text(
                          "だいたいプレビュー使わなくなるゾ",
                          style: Theme.of(context).textTheme.bodyText1,
                        ),
                      ),
                    ],
                  ),
                ),
              ),
            ),
          ),
        ),
      ),
    );
  }
}