diff --git a/package.json b/package.json
index 918a7703..73c57c86 100644
--- a/package.json
+++ b/package.json
@@ -16,8 +16,7 @@
     "test:watch": "npm run test:unit -- --no-single-run"
   },
   "dependencies": {
-    "exenv": "^1.2.0",
-    "invariant": "^2.2.0",
+    "fbjs": "^0.7.2",
     "inline-style-prefixer": "^0.6.7",
     "lodash.debounce": "^3.1.1",
     "react-tappable": "^0.7.1",
@@ -28,6 +27,7 @@
     "babel-core": "^6.3.13",
     "babel-eslint": "^4.1.6",
     "babel-loader": "^6.2.0",
+    "babel-plugin-transform-decorators-legacy": "^1.3.4",
     "babel-preset-es2015": "^6.3.13",
     "babel-preset-react": "^6.3.13",
     "babel-preset-stage-1": "^6.3.13",
diff --git a/src/apis/AppRegistry/index.js b/src/apis/AppRegistry/index.js
index 6ddfc53a..f330433d 100644
--- a/src/apis/AppRegistry/index.js
+++ b/src/apis/AppRegistry/index.js
@@ -7,7 +7,7 @@
  */
 
 import { Component } from 'react'
-import invariant from 'invariant'
+import invariant from 'fbjs/lib/invariant'
 import ReactDOM from 'react-dom'
 import renderApplication, { prerenderApplication } from './renderApplication'
 
@@ -65,7 +65,7 @@ export default class AppRegistry {
   }
 
   static runApplication(appKey: string, appParameters?: Object): void {
-    const isDevelopment = process.env.NODE_ENV === 'development'
+    const isDevelopment = process.env.NODE_ENV !== 'production'
     const params = { ...appParameters }
     params.rootTag = `#${params.rootTag.id}`
 
diff --git a/src/apis/AppRegistry/renderApplication.js b/src/apis/AppRegistry/renderApplication.js
index 844eeaf0..02ebb18d 100644
--- a/src/apis/AppRegistry/renderApplication.js
+++ b/src/apis/AppRegistry/renderApplication.js
@@ -6,7 +6,7 @@
  * @flow
  */
 
-import invariant from 'invariant'
+import invariant from 'fbjs/lib/invariant'
 import React, { Component } from 'react'
 import ReactDOM from 'react-dom'
 import ReactDOMServer from 'react-dom/server'
diff --git a/src/apis/AppState/index.js b/src/apis/AppState/index.js
index 0810313a..11e52726 100644
--- a/src/apis/AppState/index.js
+++ b/src/apis/AppState/index.js
@@ -1,4 +1,4 @@
-import invariant from 'invariant'
+import invariant from 'fbjs/lib/invariant'
 
 const listeners = {}
 const eventTypes = [ 'change' ]
diff --git a/src/apis/Dimensions/index.js b/src/apis/Dimensions/index.js
index f1ea8634..ed1c7230 100644
--- a/src/apis/Dimensions/index.js
+++ b/src/apis/Dimensions/index.js
@@ -6,7 +6,7 @@
  * @flow
  */
 
-import invariant from 'invariant'
+import invariant from 'fbjs/lib/invariant'
 
 const dimensions = {
   screen: {
diff --git a/src/apis/NetInfo/index.js b/src/apis/NetInfo/index.js
index b16621d6..51c6c9c6 100644
--- a/src/apis/NetInfo/index.js
+++ b/src/apis/NetInfo/index.js
@@ -6,7 +6,7 @@
  * @flow
  */
 
-import invariant from 'invariant'
+import invariant from 'fbjs/lib/invariant'
 
 const connection = window.navigator.connection || window.navigator.mozConnection || window.navigator.webkitConnection
 const eventTypes = [ 'change' ]
diff --git a/src/apis/Platform/index.js b/src/apis/Platform/index.js
index 3daad955..76177f55 100644
--- a/src/apis/Platform/index.js
+++ b/src/apis/Platform/index.js
@@ -1,4 +1,4 @@
-import { canUseDOM } from 'exenv'
+import { canUseDOM } from 'fbjs/lib/ExecutionEnvironment'
 
 const Platform = {
   OS: 'web',
diff --git a/src/apis/StyleSheet/StyleSheetValidation.js b/src/apis/StyleSheet/StyleSheetValidation.js
index 2b5fa8ee..5f79ead6 100644
--- a/src/apis/StyleSheet/StyleSheetValidation.js
+++ b/src/apis/StyleSheet/StyleSheetValidation.js
@@ -10,7 +10,7 @@ import { PropTypes } from 'react'
 import ImageStylePropTypes from '../../components/Image/ImageStylePropTypes'
 import TextStylePropTypes from '../../components/Text/TextStylePropTypes'
 import ViewStylePropTypes from '../../components/View/ViewStylePropTypes'
-import invariant from 'invariant'
+import invariant from 'fbjs/lib/invariant'
 
 export default class StyleSheetValidation {
   static validateStyleProp(prop, style, caller) {
diff --git a/src/apis/StyleSheet/createStrictShapeTypeChecker.js b/src/apis/StyleSheet/createStrictShapeTypeChecker.js
index 3fa66f8d..24b650c1 100644
--- a/src/apis/StyleSheet/createStrictShapeTypeChecker.js
+++ b/src/apis/StyleSheet/createStrictShapeTypeChecker.js
@@ -9,8 +9,8 @@
  * @flow
  */
 
+import invariant from 'fbjs/lib/invariant'
 import ReactPropTypeLocationNames from 'react/lib/ReactPropTypeLocationNames'
-import invariant from 'invariant'
 
 export default function createStrictShapeTypeChecker(shapeTypes) {
   function checkType(isRequired, props, propName, componentName, location?) {
diff --git a/src/apis/StyleSheet/flattenStyle.js b/src/apis/StyleSheet/flattenStyle.js
index 82fe814b..bf2c4a92 100644
--- a/src/apis/StyleSheet/flattenStyle.js
+++ b/src/apis/StyleSheet/flattenStyle.js
@@ -5,7 +5,7 @@
  *
  * @flow
  */
-import invariant from 'invariant'
+import invariant from 'fbjs/lib/invariant'
 import expandStyle from './expandStyle'
 
 export default function flattenStyle(style): ?Object {
diff --git a/src/apis/StyleSheet/normalizeColor.js b/src/apis/StyleSheet/normalizeColor.js
new file mode 100644
index 00000000..e195d4ee
--- /dev/null
+++ b/src/apis/StyleSheet/normalizeColor.js
@@ -0,0 +1,352 @@
+/* eslint-disable */
+/**
+ * Copyright (c) 2015-present, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ *
+ * @providesModule normalizeColor
+ * @flow
+ */
+/* eslint no-bitwise: 0 */
+'use strict';
+
+function normalizeColor(color: string | number): ?number {
+  var match;
+
+  if (typeof color === 'number') {
+    if (color >>> 0 === color && color >= 0 && color <= 0xffffffff) {
+      return color;
+    }
+    return null;
+  }
+
+  // Ordered based on occurrences on Facebook codebase
+  if ((match = matchers.hex6.exec(color))) {
+    return parseInt(match[1] + 'ff', 16) >>> 0;
+  }
+
+  if (names.hasOwnProperty(color)) {
+    return names[color];
+  }
+
+  if ((match = matchers.rgb.exec(color))) {
+    return (
+      parse255(match[1]) << 24 | // r
+      parse255(match[2]) << 16 | // g
+      parse255(match[3]) << 8 | // b
+      0x000000ff // a
+    ) >>> 0;
+  }
+
+  if ((match = matchers.rgba.exec(color))) {
+    return (
+      parse255(match[1]) << 24 | // r
+      parse255(match[2]) << 16 | // g
+      parse255(match[3]) << 8 | // b
+      parse1(match[4]) // a
+    ) >>> 0;
+  }
+
+  if ((match = matchers.hex3.exec(color))) {
+    return parseInt(
+      match[1] + match[1] + // r
+      match[2] + match[2] + // g
+      match[3] + match[3] + // b
+      'ff', // a
+      16
+    ) >>> 0;
+  }
+
+  // https://drafts.csswg.org/css-color-4/#hex-notation
+  if ((match = matchers.hex8.exec(color))) {
+    return parseInt(match[1], 16) >>> 0;
+  }
+
+  if ((match = matchers.hex4.exec(color))) {
+    return parseInt(
+      match[1] + match[1] + // r
+      match[2] + match[2] + // g
+      match[3] + match[3] + // b
+      match[4] + match[4], // a
+      16
+    ) >>> 0;
+  }
+
+  if ((match = matchers.hsl.exec(color))) {
+    return (
+      hslToRgb(
+        parse360(match[1]), // h
+        parsePercentage(match[2]), // s
+        parsePercentage(match[3]) // l
+      ) |
+      0x000000ff // a
+    ) >>> 0;
+  }
+
+  if ((match = matchers.hsla.exec(color))) {
+    return (
+      hslToRgb(
+        parse360(match[1]), // h
+        parsePercentage(match[2]), // s
+        parsePercentage(match[3]) // l
+      ) |
+      parse1(match[4]) // a
+    ) >>> 0;
+  }
+
+  return null;
+}
+
+function hue2rgb(p: number, q: number, t: number): number {
+  if (t < 0) {
+    t += 1;
+  }
+  if (t > 1) {
+    t -= 1;
+  }
+  if (t < 1 / 6) {
+    return p + (q - p) * 6 * t;
+  }
+  if (t < 1 / 2) {
+    return q;
+  }
+  if (t < 2 / 3) {
+    return p + (q - p) * (2 / 3 - t) * 6;
+  }
+  return p;
+}
+
+function hslToRgb(h: number, s: number, l: number): number {
+  var q = l < 0.5 ? l * (1 + s) : l + s - l * s;
+  var p = 2 * l - q;
+  var r = hue2rgb(p, q, h + 1 / 3);
+  var g = hue2rgb(p, q, h);
+  var b = hue2rgb(p, q, h - 1 / 3);
+
+  return (
+    Math.round(r * 255) << 24 |
+    Math.round(g * 255) << 16 |
+    Math.round(b * 255) << 8
+  );
+}
+
+// var INTEGER = '[-+]?\\d+';
+var NUMBER = '[-+]?\\d*\\.?\\d+';
+var PERCENTAGE = NUMBER + '%';
+
+function call(...args) {
+  return '\\(\\s*(' + args.join(')\\s*,\\s*(') + ')\\s*\\)';
+}
+
+var matchers = {
+  rgb: new RegExp('rgb' + call(NUMBER, NUMBER, NUMBER)),
+  rgba: new RegExp('rgba' + call(NUMBER, NUMBER, NUMBER, NUMBER)),
+  hsl: new RegExp('hsl' + call(NUMBER, PERCENTAGE, PERCENTAGE)),
+  hsla: new RegExp('hsla' + call(NUMBER, PERCENTAGE, PERCENTAGE, NUMBER)),
+  hex3: /^#([0-9a-fA-F]{1})([0-9a-fA-F]{1})([0-9a-fA-F]{1})$/,
+  hex4: /^#([0-9a-fA-F]{1})([0-9a-fA-F]{1})([0-9a-fA-F]{1})([0-9a-fA-F]{1})$/,
+  hex6: /^#([0-9a-fA-F]{6})$/,
+  hex8: /^#([0-9a-fA-F]{8})$/,
+};
+
+function parse255(str: string): number {
+  var int = parseInt(str, 10);
+  if (int < 0) {
+    return 0;
+  }
+  if (int > 255) {
+    return 255;
+  }
+  return int;
+}
+
+function parse360(str: string): number {
+  var int = parseFloat(str);
+  return (((int % 360) + 360) % 360) / 360;
+}
+
+function parse1(str: string): number {
+  var num = parseFloat(str);
+  if (num < 0) {
+    return 0;
+  }
+  if (num > 1) {
+    return 255;
+  }
+  return Math.round(num * 255);
+}
+
+function parsePercentage(str: string): number {
+  // parseFloat conveniently ignores the final %
+  var int = parseFloat(str, 10);
+  if (int < 0) {
+    return 0;
+  }
+  if (int > 100) {
+    return 1;
+  }
+  return int / 100;
+}
+
+var names = {
+  /* @edit start */
+  inherit: 'inherit',
+  /* @edit end */
+  transparent: 0x00000000,
+
+  // http://www.w3.org/TR/css3-color/#svg-color
+  aliceblue: 0xf0f8ffff,
+  antiquewhite: 0xfaebd7ff,
+  aqua: 0x00ffffff,
+  aquamarine: 0x7fffd4ff,
+  azure: 0xf0ffffff,
+  beige: 0xf5f5dcff,
+  bisque: 0xffe4c4ff,
+  black: 0x000000ff,
+  blanchedalmond: 0xffebcdff,
+  blue: 0x0000ffff,
+  blueviolet: 0x8a2be2ff,
+  brown: 0xa52a2aff,
+  burlywood: 0xdeb887ff,
+  burntsienna: 0xea7e5dff,
+  cadetblue: 0x5f9ea0ff,
+  chartreuse: 0x7fff00ff,
+  chocolate: 0xd2691eff,
+  coral: 0xff7f50ff,
+  cornflowerblue: 0x6495edff,
+  cornsilk: 0xfff8dcff,
+  crimson: 0xdc143cff,
+  cyan: 0x00ffffff,
+  darkblue: 0x00008bff,
+  darkcyan: 0x008b8bff,
+  darkgoldenrod: 0xb8860bff,
+  darkgray: 0xa9a9a9ff,
+  darkgreen: 0x006400ff,
+  darkgrey: 0xa9a9a9ff,
+  darkkhaki: 0xbdb76bff,
+  darkmagenta: 0x8b008bff,
+  darkolivegreen: 0x556b2fff,
+  darkorange: 0xff8c00ff,
+  darkorchid: 0x9932ccff,
+  darkred: 0x8b0000ff,
+  darksalmon: 0xe9967aff,
+  darkseagreen: 0x8fbc8fff,
+  darkslateblue: 0x483d8bff,
+  darkslategray: 0x2f4f4fff,
+  darkslategrey: 0x2f4f4fff,
+  darkturquoise: 0x00ced1ff,
+  darkviolet: 0x9400d3ff,
+  deeppink: 0xff1493ff,
+  deepskyblue: 0x00bfffff,
+  dimgray: 0x696969ff,
+  dimgrey: 0x696969ff,
+  dodgerblue: 0x1e90ffff,
+  firebrick: 0xb22222ff,
+  floralwhite: 0xfffaf0ff,
+  forestgreen: 0x228b22ff,
+  fuchsia: 0xff00ffff,
+  gainsboro: 0xdcdcdcff,
+  ghostwhite: 0xf8f8ffff,
+  gold: 0xffd700ff,
+  goldenrod: 0xdaa520ff,
+  gray: 0x808080ff,
+  green: 0x008000ff,
+  greenyellow: 0xadff2fff,
+  grey: 0x808080ff,
+  honeydew: 0xf0fff0ff,
+  hotpink: 0xff69b4ff,
+  indianred: 0xcd5c5cff,
+  indigo: 0x4b0082ff,
+  ivory: 0xfffff0ff,
+  khaki: 0xf0e68cff,
+  lavender: 0xe6e6faff,
+  lavenderblush: 0xfff0f5ff,
+  lawngreen: 0x7cfc00ff,
+  lemonchiffon: 0xfffacdff,
+  lightblue: 0xadd8e6ff,
+  lightcoral: 0xf08080ff,
+  lightcyan: 0xe0ffffff,
+  lightgoldenrodyellow: 0xfafad2ff,
+  lightgray: 0xd3d3d3ff,
+  lightgreen: 0x90ee90ff,
+  lightgrey: 0xd3d3d3ff,
+  lightpink: 0xffb6c1ff,
+  lightsalmon: 0xffa07aff,
+  lightseagreen: 0x20b2aaff,
+  lightskyblue: 0x87cefaff,
+  lightslategray: 0x778899ff,
+  lightslategrey: 0x778899ff,
+  lightsteelblue: 0xb0c4deff,
+  lightyellow: 0xffffe0ff,
+  lime: 0x00ff00ff,
+  limegreen: 0x32cd32ff,
+  linen: 0xfaf0e6ff,
+  magenta: 0xff00ffff,
+  maroon: 0x800000ff,
+  mediumaquamarine: 0x66cdaaff,
+  mediumblue: 0x0000cdff,
+  mediumorchid: 0xba55d3ff,
+  mediumpurple: 0x9370dbff,
+  mediumseagreen: 0x3cb371ff,
+  mediumslateblue: 0x7b68eeff,
+  mediumspringgreen: 0x00fa9aff,
+  mediumturquoise: 0x48d1ccff,
+  mediumvioletred: 0xc71585ff,
+  midnightblue: 0x191970ff,
+  mintcream: 0xf5fffaff,
+  mistyrose: 0xffe4e1ff,
+  moccasin: 0xffe4b5ff,
+  navajowhite: 0xffdeadff,
+  navy: 0x000080ff,
+  oldlace: 0xfdf5e6ff,
+  olive: 0x808000ff,
+  olivedrab: 0x6b8e23ff,
+  orange: 0xffa500ff,
+  orangered: 0xff4500ff,
+  orchid: 0xda70d6ff,
+  palegoldenrod: 0xeee8aaff,
+  palegreen: 0x98fb98ff,
+  paleturquoise: 0xafeeeeff,
+  palevioletred: 0xdb7093ff,
+  papayawhip: 0xffefd5ff,
+  peachpuff: 0xffdab9ff,
+  peru: 0xcd853fff,
+  pink: 0xffc0cbff,
+  plum: 0xdda0ddff,
+  powderblue: 0xb0e0e6ff,
+  purple: 0x800080ff,
+  rebeccapurple: 0x663399ff,
+  red: 0xff0000ff,
+  rosybrown: 0xbc8f8fff,
+  royalblue: 0x4169e1ff,
+  saddlebrown: 0x8b4513ff,
+  salmon: 0xfa8072ff,
+  sandybrown: 0xf4a460ff,
+  seagreen: 0x2e8b57ff,
+  seashell: 0xfff5eeff,
+  sienna: 0xa0522dff,
+  silver: 0xc0c0c0ff,
+  skyblue: 0x87ceebff,
+  slateblue: 0x6a5acdff,
+  slategray: 0x708090ff,
+  slategrey: 0x708090ff,
+  snow: 0xfffafaff,
+  springgreen: 0x00ff7fff,
+  steelblue: 0x4682b4ff,
+  tan: 0xd2b48cff,
+  teal: 0x008080ff,
+  thistle: 0xd8bfd8ff,
+  tomato: 0xff6347ff,
+  turquoise: 0x40e0d0ff,
+  violet: 0xee82eeff,
+  wheat: 0xf5deb3ff,
+  white: 0xffffffff,
+  whitesmoke: 0xf5f5f5ff,
+  yellow: 0xffff00ff,
+  yellowgreen: 0x9acd32ff,
+};
+
+module.exports = normalizeColor;
diff --git a/src/apis/UIManager/index.js b/src/apis/UIManager/index.js
index 073864ff..38ad962a 100644
--- a/src/apis/UIManager/index.js
+++ b/src/apis/UIManager/index.js
@@ -1,9 +1,9 @@
 import CSSPropertyOperations from 'react/lib/CSSPropertyOperations'
 
 const measureAll = (node, callback, relativeToNativeNode) => {
-  const { height, left, top, width } = node.getBoundingClientRect()
   const relativeNode = relativeToNativeNode || node.parentNode
   const relativeRect = relativeNode.getBoundingClientRect()
+  const { height, left, top, width } = node.getBoundingClientRect()
   const x = left - relativeRect.left
   const y = top - relativeRect.top
   callback(x, y, width, height, left, top)