Rename package:sky to package:flutter

examples/game/lib/main.dart

diff --git a/examples/game/lib/main.dart b/examples/game/lib/main.dart
index 098f3eb..54be5e7 100644
--- a/examples/game/lib/main.dart
+++ b/examples/game/lib/main.dart
@@ -4,10 +4,10 @@
 
 import 'dart:async';
 
-import 'package:sky/material.dart';
-import 'package:sky/painting.dart';
-import 'package:sky/rendering.dart';
-import 'package:sky/services.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter/painting.dart';
+import 'package:flutter/rendering.dart';
+import 'package:flutter/services.dart';
 import 'package:skysprites/skysprites.dart';
 
 import 'game_demo.dart';