- Example AppTheme updated to useMaterial3

Author: luis901101

example/lib/app/theme.dart

@@ -4,6 +4,7 @@ import 'package:flutter/material.dart';
 class AppTheme {
   static final light = ThemeData(
     brightness: Brightness.light,
+    useMaterial3: true,
     colorScheme: const ColorScheme.light(secondary: Colors.red),
     disabledColor: Colors.grey.shade400,
     visualDensity: VisualDensity.adaptivePlatformDensity,
@@ -13,6 +14,7 @@ class AppTheme {
     brightness: Brightness.dark,
     colorScheme: const ColorScheme.dark(secondary: Colors.red),
     disabledColor: Colors.grey.shade400,
+    useMaterial3: true,
     visualDensity: VisualDensity.adaptivePlatformDensity,
   );
 }