Develop a fully functional, offline-first mobile application using the Flutter framework and Dart programming language. Implement the following color scheme: [Specify the color scheme here, including primary, secondary, background, text colors, etc.]. The application should be well-structured, adhering to best practices for code organization, state management, and UI design. Ensure the application is fully functional, with features that work seamlessly in offline mode, utilizing local storage or other appropriate mechanisms to store and retrieve data. The application should also provide a user-friendly and intuitive interface, with clear navigation and responsive design for various screen sizes. Consider incorporating features such as data synchronization when an internet connection is available, and error handling to gracefully manage offline scenarios. The application should be thoroughly tested to ensure stability and reliability.color scheme import 'package:flutter/material.dart';ThemeData lightTheme = ThemeData( brightness: Brightness.light, scaffoldBackgroundColor: Color(0xFFFFFFFF), cardColor: Color(0xFFF7F7F7), textTheme: const TextTheme( bodyLarge: TextStyle(color: Color(0xFF1C1C1E)), bodyMedium: TextStyle(color: Color(0xFF1C1C1E)), bodySmall: TextStyle(color: Color(0xFF1C1C1E)), ), colorScheme: ColorScheme.light( primary: Color(0xFF6A0DAD), // Royal Purple secondary: Color(0xFF00C853), // Lime Green background: Color(0xFFFFFFFF), // White surface: Color(0xFFF7F7F7), // Light Grey onPrimary: Color(0xFFFFFFFF), onSecondary: Color(0xFFFFFFFF), onBackground: Color(0xFF1C1C1E), // Text color onSurface: Color(0xFF1C1C1E), ), elevatedButtonTheme: ElevatedButtonThemeData( style: ElevatedButton.styleFrom( backgroundColor: Color(0xFF6A0DAD), // Purple button foregroundColor: Color(0xFFFFFFFF), ), ),);ThemeData darkTheme = ThemeData( brightness: Brightness.dark, scaffoldBackgroundColor: Color(0xFF121212), cardColor: Color(0xFF1F1F1F), textTheme: const TextTheme( bodyLarge: TextStyle(color: Color(0xFFE0E0E0)), bodyMedium: TextStyle(color: Color(0xFFE0E0E0)), bodySmall: TextStyle(color: Color(0xFFE0E0E0)), ), colorScheme: ColorScheme.dark( primary: Color(0xFFB388EB), // Light Purple secondary: Color(0xFF00E676), // Bright Green background: Color(0xFF121212), // Dark background surface: Color(0xFF1F1F1F), // Card color onPrimary: Color(0xFF121212), onSecondary: Color(0xFF121212), onBackground: Color(0xFFE0E0E0), onSurface: Color(0xFFE0E0E0), ), elevatedButtonTheme: ElevatedButtonThemeData( style: ElevatedButton.styleFrom( backgroundColor: Color(0xFFB388EB), // Purple button foregroundColor: Color(0xFF121212), ), ),);