Custom Font

 import "package:flutter/material.dart";

void main() {
  runApp(const FlutterApp());
}

class FlutterApp extends StatelessWidget {
  const FlutterApp({super.key});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: "Hello",
      debugShowCheckedModeBanner: false,
      theme: ThemeData(
        primarySwatch: Colors.lightGreen,
      ),
      home: const DashBoardScreen(),
    );
  }
}

class DashBoardScreen extends StatelessWidget {
  const DashBoardScreen({super.key});

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text(
          "Welcome FLUTTER",
          style: TextStyle(fontWeight: FontWeight.bold),
        ),
        centerTitle: true,
        backgroundColor: Colors.grey,
      ),
      body: const Center(
        child: Text(
          "Hello HEER",
          style: TextStyle(
              fontFamily: "FontMain",
              fontWeight: FontWeight.w500,
              fontSize: 55),
        ),
      ),
    );
  }
}