Add constants for material colors and shadows

sky/framework/theme/colors.dart

Index: sky/framework/theme/colors.dart
diff --git a/sky/framework/theme/colors.dart b/sky/framework/theme/colors.dart
new file mode 100644
index 0000000000000000000000000000000000000000..e7abfbc64564bab590cabbc25ae53a344cec7633
--- /dev/null
+++ b/sky/framework/theme/colors.dart
@@ -0,0 +1,250 @@
+// 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.
+
+const Map<int, String> Red = const {
+   50: '#FFEBEE',
+  100: '#FFCDD2',
+  200: '#EF9A9A',
+  300: '#E57373',
+  400: '#EF5350',
+  500: '#F44336',
+  600: '#E53935',
+  700: '#D32F2F',
+  800: '#C62828',
+  900: '#B71C1C',
+};
+
+const Map<int, String> Pink = const {
+   50: '#FCE4EC',
+  100: '#F8BBD0',
+  200: '#F48FB1',
+  300: '#F06292',
+  400: '#EC407A',
+  500: '#E91E63',
+  600: '#D81B60',
+  700: '#C2185B',
+  800: '#AD1457',
+  900: '#880E4F',
+};
+
+const Map<int, String> Purple = const {
+   50: '#F3E5F5',
+  100: '#E1BEE7',
+  200: '#CE93D8',
+  300: '#BA68C8',
+  400: '#AB47BC',
+  500: '#9C27B0',
+  600: '#8E24AA',
+  700: '#7B1FA2',
+  800: '#6A1B9A',
+  900: '#4A148C',
+};
+
+const Map<int, String> DeepPurple = const {
+   50: '#EDE7F6',
+  100: '#D1C4E9',
+  200: '#B39DDB',
+  300: '#9575CD',
+  400: '#7E57C2',
+  500: '#673AB7',
+  600: '#5E35B1',
+  700: '#512DA8',
+  800: '#4527A0',
+  900: '#311B92',
+};
+
+const Map<int, String> Indigo = const {
+   50: '#E8EAF6',
+  100: '#C5CAE9',
+  200: '#9FA8DA',
+  300: '#7986CB',
+  400: '#5C6BC0',
+  500: '#3F51B5',
+  600: '#3949AB',
+  700: '#303F9F',
+  800: '#283593',
+  900: '#1A237E',
+};
+
+const Map<int, String> Blue = const {
+   50: '#E3F2FD',
+  100: '#BBDEFB',
+  200: '#90CAF9',
+  300: '#64B5F6',
+  400: '#42A5F5',
+  500: '#2196F3',
+  600: '#1E88E5',
+  700: '#1976D2',
+  800: '#1565C0',
+  900: '#0D47A1',
+};
+
+const Map<int, String> LightBlue = const {
+   50: '#E1F5FE',
+  100: '#B3E5FC',
+  200: '#81D4FA',
+  300: '#4FC3F7',
+  400: '#29B6F6',
+  500: '#03A9F4',
+  600: '#039BE5',
+  700: '#0288D1',
+  800: '#0277BD',
+  900: '#01579B',
+};
+
+const Map<int, String> Cyan = const {
+   50: '#E0F7FA',
+  100: '#B2EBF2',
+  200: '#80DEEA',
+  300: '#4DD0E1',
+  400: '#26C6DA',
+  500: '#00BCD4',
+  600: '#00ACC1',
+  700: '#0097A7',
+  800: '#00838F',
+  900: '#006064',
+};
+
+const Map<int, String> Teal = const {
+   50: '#E0F2F1',
+  100: '#B2DFDB',
+  200: '#80CBC4',
+  300: '#4DB6AC',
+  400: '#26A69A',
+  500: '#009688',
+  600: '#00897B',
+  700: '#00796B',
+  800: '#00695C',
+  900: '#004D40',
+};
+
+const Map<int, String> Green = const {
+   50: '#E8F5E9',
+  100: '#C8E6C9',
+  200: '#A5D6A7',
+  300: '#81C784',
+  400: '#66BB6A',
+  500: '#4CAF50',
+  600: '#43A047',
+  700: '#388E3C',
+  800: '#2E7D32',
+  900: '#1B5E20',
+};
+
+const Map<int, String> LightGreen = const {
+   50: '#F1F8E9',
+  100: '#DCEDC8',
+  200: '#C5E1A5',
+  300: '#AED581',
+  400: '#9CCC65',
+  500: '#8BC34A',
+  600: '#7CB342',
+  700: '#689F38',
+  800: '#558B2F',
+  900: '#33691E',
+};
+
+const Map<int, String> Lime = const {
+   50: '#F9FBE7',
+  100: '#F0F4C3',
+  200: '#E6EE9C',
+  300: '#DCE775',
+  400: '#D4E157',
+  500: '#CDDC39',
+  600: '#C0CA33',
+  700: '#AFB42B',
+  800: '#9E9D24',
+  900: '#827717',
+};
+
+const Map<int, String> Yellow = const {
+   50: '#FFFDE7',
+  100: '#FFF9C4',
+  200: '#FFF59D',
+  300: '#FFF176',
+  400: '#FFEE58',
+  500: '#FFEB3B',
+  600: '#FDD835',
+  700: '#FBC02D',
+  800: '#F9A825',
+  900: '#F57F17',
+};
+
+const Map<int, String> Amber = const {
+   50: '#FFF8E1',
+  100: '#FFECB3',
+  200: '#FFE082',
+  300: '#FFD54F',
+  400: '#FFCA28',
+  500: '#FFC107',
+  600: '#FFB300',
+  700: '#FFA000',
+  800: '#FF8F00',
+  900: '#FF6F00',
+};
+
+const Map<int, String> Orange = const {
+   50: '#FFF3E0',
+  100: '#FFE0B2',
+  200: '#FFCC80',
+  300: '#FFB74D',
+  400: '#FFA726',
+  500: '#FF9800',
+  600: '#FB8C00',
+  700: '#F57C00',
+  800: '#EF6C00',
+  900: '#E65100',
+};
+
+const Map<int, String> DeepOrange = const {
+   50: '#FBE9E7',
+  100: '#FFCCBC',
+  200: '#FFAB91',
+  300: '#FF8A65',
+  400: '#FF7043',
+  500: '#FF5722',
+  600: '#F4511E',
+  700: '#E64A19',
+  800: '#D84315',
+  900: '#BF360C',
+};
+
+const Map<int, String> Brown = const {
+   50: '#EFEBE9',
+  100: '#D7CCC8',
+  200: '#BCAAA4',
+  300: '#A1887F',
+  400: '#8D6E63',
+  500: '#795548',
+  600: '#6D4C41',
+  700: '#5D4037',
+  800: '#4E342E',
+  900: '#3E2723',
+};
+
+const Map<int, String> Grey = const {
+   50: '#FAFAFA',
+  100: '#F5F5F5',
+  200: '#EEEEEE',
+  300: '#E0E0E0',
+  400: '#BDBDBD',
+  500: '#9E9E9E',
+  600: '#757575',
+  700: '#616161',
+  800: '#424242',
+  900: '#212121',
+};
+
+const Map<int, String> BlueGrey = const {
+   50: '#ECEFF1',
+  100: '#CFD8DC',
+  200: '#B0BEC5',
+  300: '#90A4AE',
+  400: '#78909C',
+  500: '#607D8B',
+  600: '#546E7A',
+  700: '#455A64',
+  800: '#37474F',
+  900: '#263238',
+};