Update BoxDecoration and RenderParagraph to use sky.Color instead of int.

sky/sdk/lib/framework/components2/icon.dart

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 import 'dart:sky' as sky;
 import '../fn2.dart';
 import '../rendering/box.dart';
 
 // TODO(eseidel): This should use package:.
 const String kAssetBase = '/packages/sky/assets/material-design-icons';
@@ skipping 12 matching lines @@
     String category = '';
     String subtype = '';
     List<String> parts = type.split('/');
     if (parts.length == 2) {
       category = parts[0];
       subtype = parts[1];
     }
     // TODO(jackson): Use a real image.
     return new Container(
       desiredSize: new sky.Size(size.toDouble(), size.toDouble()),
-      decoration: new BoxDecoration(backgroundColor: 0xFFFF0000)
+      decoration: new BoxDecoration(backgroundColor: const sky.Color(0xFFFF0000))
     );
     // return new Image(width: size, height: size,
     //   src: '${kAssetBase}/${category}/2x_web/ic_${subtype}_${size}dp.png');
   }
 }