Support for icon theming

sky/sdk/lib/theme/colors.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' show Color;
 
 /// [Color] constants which represent Material design's
 /// [color palette](http://www.google.com/design/spec/style/color.html).
 
 const White = const Color(0xFFFFFFFF);
@@ skipping 352 matching lines @@
   100: const Color(0xFFCFD8DC),
   200: const Color(0xFFB0BEC5),
   300: const Color(0xFF90A4AE),
   400: const Color(0xFF78909C),
   500: const Color(0xFF607D8B),
   600: const Color(0xFF546E7A),
   700: const Color(0xFF455A64),
   800: const Color(0xFF37474F),
   900: const Color(0xFF263238),
 };
-
-const List<Map<int, Color>> DarkColors = const [
-  Red,
-  Pink,
-  Purple,
-  DeepPurple,
-  Indigo,
-  Blue,
-  Teal,
-  DeepOrange,
-  Brown
-];