mirrored_repositories/flutter-udemy-demoapps/08_NavigationMultiScreens/meals_app/lib
import 'package:flutter/material.dart';

class Category {
  const Category({
    required this.id,
    required this.title,
    this.color = Colors.orange, // デフォルト値
  });

  final String id;
  final String title;
  final Color color;
}