Flutter: How do you change the AppBar Title font?

Here's my first flutter app... Just learning and messing around a bit. I'm trying to figure out how to change the text of the title within the AppBar. Note that the text in the body changes, but the text in the app bar does not. Am I totally wrong here? I used this method based on other public questions on stack overflow on this topic. No luck on my end.

import 'package:flutter/material.dart';

void main() => runApp(MaterialApp(
  home: Scaffold(
    appBar: AppBar(
      title: Text('My First App', style: TextStyle(fontFamily: 'Audowide'),),
      centerTitle: true,
      backgroundColor: Colors.cyan[700],
      brightness: Brightness.dark,
    ),
    body: Center(
      child: Text("Body Text!",
        style: TextStyle(
          fontSize: 20.0,
          fontWeight: FontWeight.bold,
          fontFamily: 'Audiowide',
          letterSpacing: 2.0,
          color: Colors.grey[500],
        ),
      ),
    ),
    floatingActionButton: FloatingActionButton(
      onPressed: () {}, // for later use
      backgroundColor: Colors.cyan[700],
      child: Text("Press"),
    ),
  ),
));

Solution

Step 1: Fix typo in your code change Audowide to Audiowide
Step 2: Download https://fonts.google.com/specimen/Audiowide
Step 3: Put file in directory assets/fonts
Step 4: In pubspec.yaml

fonts:
  - family: Audiowide
    fonts:
      - asset: assets/fonts/Audiowide-Regular.ttf

working demo