relatica/lib/app_theme.dart

import 'package:flutter/material.dart';

class AppTheme {
  static ThemeData light = ThemeData(
    colorSchemeSeed: Colors.indigo,
    useMaterial3: true,
  );

  static ThemeData dark = ThemeData(
    colorSchemeSeed: Colors.indigo,
    useMaterial3: true,
    brightness: Brightness.dark,
  );
}