feat: Create the Agenda04Pixelation01Slide

lib/app.dart

@@ -55,6 +55,7 @@ import 'package:custom_fragment_shader/slides/agenda03/agenda03_run04_slide.dart
 import 'package:custom_fragment_shader/slides/agenda03/agenda03_run05_slide.dart';
 import 'package:custom_fragment_shader/slides/agenda03/agenda03_run06_slide.dart';
 import 'package:custom_fragment_shader/slides/agenda03/agenda03_title_slide.dart';
+import 'package:custom_fragment_shader/slides/agenda04/agenda04_pixelation01_slide.dart';
 import 'package:custom_fragment_shader/slides/agenda04/agenda04_title_slide.dart';
 import 'package:custom_fragment_shader/slides/agenda_slide.dart';
 import 'package:custom_fragment_shader/slides/intro_slide.dart';
@@ -128,6 +129,7 @@ final class App extends StatelessWidget {
       Agenda03Run05Slide(),
       Agenda03Run06Slide(),
       Agenda04TitleSlide(),
+      Agenda04Pixelation01Slide(),
       OutroSlide(),
     ];
 

lib/slides/agenda04/agenda04_pixelation01_slide.dart

@@ -0,0 +1,37 @@
+import 'package:custom_fragment_shader/data/agenda.dart';
+import 'package:custom_fragment_shader/framework/slide_widget.dart';
+import 'package:custom_fragment_shader/templates/title_header_slide.dart';
+import 'package:flutter/material.dart';
+import 'package:go_router/go_router.dart';
+
+final class Agenda04Pixelation01Slide extends SlideStatelessWidget {
+  const Agenda04Pixelation01Slide({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    final theme = Theme.of(context);
+    final textTheme = theme.textTheme;
+    final body = Center(
+      child: Text(
+        'Pixelation',
+        style: textTheme.headlineLarge,
+      ),
+    );
+
+    return TitleHeaderSlide(
+      title: Agenda.agenda04,
+      body: body,
+    );
+  }
+
+  @override
+  String get speakerNote => '''
+まずはじめに Pixelation について紹介します。''';
+
+  @override
+  GoRouterPageBuilder get pageBuilder => (context, state) => NoTransitionPage(
+        key: state.pageKey,
+        restorationId: state.pageKey.value,
+        child: this,
+      );
+}