diff --git a/csharp/Facebook.Yoga/Native.cs b/csharp/Facebook.Yoga/Native.cs
index 7786b8cf..28fcc55c 100644
--- a/csharp/Facebook.Yoga/Native.cs
+++ b/csharp/Facebook.Yoga/Native.cs
@@ -14,21 +14,25 @@ namespace Facebook.Yoga
 {
     internal static class Native
     {
-#if UNITY_IOS && !UNITY_EDITOR
+#if (UNITY_IOS && !UNITY_EDITOR) || MONOMAC
         private const string DllName = "__Internal";
 #else
         private const string DllName = "yoga";
 #endif
 
+#if !MONOMAC
         [DllImport(DllName)]
         public static extern void YGInteropSetLogger(
             [MarshalAs(UnmanagedType.FunctionPtr)] YogaLogger.Func func);
+#endif
 
         [DllImport(DllName)]
         public static extern IntPtr YGNodeNew();
 
+#if !MONOMAC
         [DllImport(DllName)]
         public static extern void YGNodeInit(IntPtr node);
+#endif
 
         [DllImport(DllName)]
         public static extern void YGNodeFree(IntPtr node);
diff --git a/csharp/Facebook.Yoga/YogaLogger.cs b/csharp/Facebook.Yoga/YogaLogger.cs
index e5d79b79..607f1c45 100644
--- a/csharp/Facebook.Yoga/YogaLogger.cs
+++ b/csharp/Facebook.Yoga/YogaLogger.cs
@@ -14,18 +14,23 @@ namespace Facebook.Yoga
 {
     internal static class YogaLogger
     {
+#if !MONOMAC
         [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
         public delegate void Func(YogaLogLevel level, string message);
+#endif
 
         private static bool _initialized;
+#if !MONOMAC
         private static Func _managedLogger = null;
 
         public static Func Logger = null;
+#endif
 
         public static void Initialize()
         {
             if (!_initialized)
             {
+#if !MONOMAC
                 _managedLogger = (level, message) => {
                     if (Logger != null)
                     {
@@ -38,6 +43,7 @@ namespace Facebook.Yoga
                     }
                 };
                 Native.YGInteropSetLogger(_managedLogger);
+#endif
                 _initialized = true;
             }
         }
diff --git a/csharp/Facebook.Yoga/YogaNode.cs b/csharp/Facebook.Yoga/YogaNode.cs
index 9211b28e..3bc0886a 100644
--- a/csharp/Facebook.Yoga/YogaNode.cs
+++ b/csharp/Facebook.Yoga/YogaNode.cs
@@ -541,6 +541,7 @@ namespace Facebook.Yoga
             return new YogaSize { width = MeasureOutput.GetWidth(output), height = MeasureOutput.GetHeight(output) };
         }
 
+#if !MONOMAC
         public string Print(YogaPrintOptions options =
             YogaPrintOptions.Layout|YogaPrintOptions.Style|YogaPrintOptions.Children)
         {
@@ -551,6 +552,7 @@ namespace Facebook.Yoga
             YogaLogger.Logger = orig;
             return sb.ToString();
         }
+#endif
 
         public IEnumerator<YogaNode> GetEnumerator()
         {
diff --git a/csharp/Facebook.Yoga/mac/.gitignore b/csharp/Facebook.Yoga/mac/.gitignore
new file mode 100644
index 00000000..a5b96ed6
--- /dev/null
+++ b/csharp/Facebook.Yoga/mac/.gitignore
@@ -0,0 +1,2 @@
+libyoga.a
+*.userprefs
diff --git a/csharp/Facebook.Yoga/mac/ApiDefinition.cs b/csharp/Facebook.Yoga/mac/ApiDefinition.cs
new file mode 100644
index 00000000..de52afd0
--- /dev/null
+++ b/csharp/Facebook.Yoga/mac/ApiDefinition.cs
@@ -0,0 +1,13 @@
+using System;
+
+using AppKit;
+using Foundation;
+using ObjCRuntime;
+using CoreGraphics;
+
+namespace Facebook.Yoga.Mac
+{
+	// We're actually abusing the Xamarin.Mac binding project
+	// to bundle in the static lib for us. There is no objective-c
+	// lib to bind, but the build will fail without ApiDefinition.cs
+}
diff --git a/csharp/Facebook.Yoga/mac/CustomBuildAction.targets b/csharp/Facebook.Yoga/mac/CustomBuildAction.targets
new file mode 100644
index 00000000..442590ed
--- /dev/null
+++ b/csharp/Facebook.Yoga/mac/CustomBuildAction.targets
@@ -0,0 +1,11 @@
+<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+
+	<PropertyGroup>
+	    <CompileDependsOn>CopyInNativeLib;$(CompileDependsOn)</CompileDependsOn>
+	</PropertyGroup>
+
+	<!-- The # and , in this path does not play nice with the binding project logic, so make a copy -->
+	<Target Name="CopyInNativeLib" Inputs="..\..\..\buck-out\gen\yoga#default,static\libyoga.a" Outputs="$(ProjectDir)libyoga.a">
+	    <Copy SourceFiles="..\..\..\buck-out\gen\yoga#default,static\libyoga.a" DestinationFiles="$(ProjectDir)/libyoga.a" />
+	</Target>
+</Project>
diff --git a/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/AppDelegate.cs b/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/AppDelegate.cs
new file mode 100644
index 00000000..a0d8df6e
--- /dev/null
+++ b/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/AppDelegate.cs
@@ -0,0 +1,22 @@
+using AppKit;
+using Foundation;
+
+namespace Facebook.Yoga.Mac.Test
+{
+	[Register("AppDelegate")]
+	public class AppDelegate : NSApplicationDelegate
+	{
+		public AppDelegate()
+		{
+		}
+
+		public override void DidFinishLaunching(NSNotification notification)
+		{
+		}
+
+		public override void WillTerminate(NSNotification notification)
+		{
+			// Insert code here to tear down your application
+		}
+	}
+}
diff --git a/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/Assets.xcassets/AppIcon.appiconset/AppIcon-128.png b/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/Assets.xcassets/AppIcon.appiconset/AppIcon-128.png
new file mode 100644
index 00000000..d0b5a809
Binary files /dev/null and b/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/Assets.xcassets/AppIcon.appiconset/AppIcon-128.png differ
diff --git a/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/Assets.xcassets/AppIcon.appiconset/AppIcon-128@2x.png b/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/Assets.xcassets/AppIcon.appiconset/AppIcon-128@2x.png
new file mode 100644
index 00000000..f4c8d290
Binary files /dev/null and b/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/Assets.xcassets/AppIcon.appiconset/AppIcon-128@2x.png differ
diff --git a/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/Assets.xcassets/AppIcon.appiconset/AppIcon-16.png b/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/Assets.xcassets/AppIcon.appiconset/AppIcon-16.png
new file mode 100644
index 00000000..ebb5a0fe
Binary files /dev/null and b/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/Assets.xcassets/AppIcon.appiconset/AppIcon-16.png differ
diff --git a/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/Assets.xcassets/AppIcon.appiconset/AppIcon-16@2x.png b/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/Assets.xcassets/AppIcon.appiconset/AppIcon-16@2x.png
new file mode 100644
index 00000000..0986d31b
Binary files /dev/null and b/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/Assets.xcassets/AppIcon.appiconset/AppIcon-16@2x.png differ
diff --git a/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/Assets.xcassets/AppIcon.appiconset/AppIcon-256.png b/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/Assets.xcassets/AppIcon.appiconset/AppIcon-256.png
new file mode 100644
index 00000000..f4c8d290
Binary files /dev/null and b/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/Assets.xcassets/AppIcon.appiconset/AppIcon-256.png differ
diff --git a/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/Assets.xcassets/AppIcon.appiconset/AppIcon-256@2x.png b/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/Assets.xcassets/AppIcon.appiconset/AppIcon-256@2x.png
new file mode 100644
index 00000000..a142c83f
Binary files /dev/null and b/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/Assets.xcassets/AppIcon.appiconset/AppIcon-256@2x.png differ
diff --git a/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/Assets.xcassets/AppIcon.appiconset/AppIcon-32.png b/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/Assets.xcassets/AppIcon.appiconset/AppIcon-32.png
new file mode 100644
index 00000000..0986d31b
Binary files /dev/null and b/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/Assets.xcassets/AppIcon.appiconset/AppIcon-32.png differ
diff --git a/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/Assets.xcassets/AppIcon.appiconset/AppIcon-32@2x.png b/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/Assets.xcassets/AppIcon.appiconset/AppIcon-32@2x.png
new file mode 100644
index 00000000..412d6ca9
Binary files /dev/null and b/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/Assets.xcassets/AppIcon.appiconset/AppIcon-32@2x.png differ
diff --git a/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/Assets.xcassets/AppIcon.appiconset/AppIcon-512.png b/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/Assets.xcassets/AppIcon.appiconset/AppIcon-512.png
new file mode 100644
index 00000000..a142c83f
Binary files /dev/null and b/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/Assets.xcassets/AppIcon.appiconset/AppIcon-512.png differ
diff --git a/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/Assets.xcassets/AppIcon.appiconset/AppIcon-512@2x.png b/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/Assets.xcassets/AppIcon.appiconset/AppIcon-512@2x.png
new file mode 100644
index 00000000..e99022ae
Binary files /dev/null and b/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/Assets.xcassets/AppIcon.appiconset/AppIcon-512@2x.png differ
diff --git a/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/Assets.xcassets/AppIcon.appiconset/Contents.json b/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 00000000..6b285452
--- /dev/null
+++ b/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/Assets.xcassets/AppIcon.appiconset/Contents.json
@@ -0,0 +1,68 @@
+{
+  "images": [
+    {
+      "filename": "AppIcon-16.png",
+      "size": "16x16",
+      "scale": "1x",
+      "idiom": "mac"
+    },
+    {
+      "filename": "AppIcon-16@2x.png",
+      "size": "16x16",
+      "scale": "2x",
+      "idiom": "mac"
+    },
+    {
+      "filename": "AppIcon-32.png",
+      "size": "32x32",
+      "scale": "1x",
+      "idiom": "mac"
+    },
+    {
+      "filename": "AppIcon-32@2x.png",
+      "size": "32x32",
+      "scale": "2x",
+      "idiom": "mac"
+    },
+    {
+      "filename": "AppIcon-128.png",
+      "size": "128x128",
+      "scale": "1x",
+      "idiom": "mac"
+    },
+    {
+      "filename": "AppIcon-128@2x.png",
+      "size": "128x128",
+      "scale": "2x",
+      "idiom": "mac"
+    },
+    {
+      "filename": "AppIcon-256.png",
+      "size": "256x256",
+      "scale": "1x",
+      "idiom": "mac"
+    },
+    {
+      "filename": "AppIcon-256@2x.png",
+      "size": "256x256",
+      "scale": "2x",
+      "idiom": "mac"
+    },
+    {
+      "filename": "AppIcon-512.png",
+      "size": "512x512",
+      "scale": "1x",
+      "idiom": "mac"
+    },
+    {
+      "filename": "AppIcon-512@2x.png",
+      "size": "512x512",
+      "scale": "2x",
+      "idiom": "mac"
+    }
+  ],
+  "info": {
+    "version": 1,
+    "author": "xcode"
+  }
+}
\ No newline at end of file
diff --git a/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/Assets.xcassets/Contents.json b/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/Assets.xcassets/Contents.json
new file mode 100644
index 00000000..4caf392f
--- /dev/null
+++ b/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/Assets.xcassets/Contents.json
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
\ No newline at end of file
diff --git a/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/Entitlements.plist b/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/Entitlements.plist
new file mode 100644
index 00000000..9ae59937
--- /dev/null
+++ b/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/Entitlements.plist
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+</dict>
+</plist>
diff --git a/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/Facebook.Yoga.Mac.Test.csproj b/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/Facebook.Yoga.Mac.Test.csproj
new file mode 100644
index 00000000..4e25ba68
--- /dev/null
+++ b/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/Facebook.Yoga.Mac.Test.csproj
@@ -0,0 +1,98 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{64E0AB97-A904-4607-A535-EEA5A966C09E}</ProjectGuid>
+    <ProjectTypeGuids>{A3F8F2AB-B479-4A4A-A458-A89E7DC349F1};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
+    <OutputType>Exe</OutputType>
+    <RootNamespace>Facebook.Yoga.Mac.Test</RootNamespace>
+    <AssemblyName>Facebook.Yoga.Mac.Test</AssemblyName>
+    <TargetFrameworkVersion>v2.0</TargetFrameworkVersion>
+    <TargetFrameworkIdentifier>Xamarin.Mac</TargetFrameworkIdentifier>
+    <MonoMacResourcePrefix>Resources</MonoMacResourcePrefix>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug</OutputPath>
+    <DefineConstants>DEBUG;</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+    <EnableCodeSigning>false</EnableCodeSigning>
+    <CodeSigningKey>Mac Developer</CodeSigningKey>
+    <CreatePackage>false</CreatePackage>
+    <EnablePackageSigning>false</EnablePackageSigning>
+    <IncludeMonoRuntime>false</IncludeMonoRuntime>
+    <UseSGen>true</UseSGen>
+    <UseRefCounting>true</UseRefCounting>
+    <Profiling>true</Profiling>
+    <HttpClientHandler>HttpClientHandler</HttpClientHandler>
+    <TlsProvider>Default</TlsProvider>
+    <LinkMode>None</LinkMode>
+    <XamMacArch>x86_64</XamMacArch>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release</OutputPath>
+    <DefineConstants></DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+    <EnableCodeSigning>false</EnableCodeSigning>
+    <CreatePackage>true</CreatePackage>
+    <EnablePackageSigning>false</EnablePackageSigning>
+    <IncludeMonoRuntime>true</IncludeMonoRuntime>
+    <UseSGen>true</UseSGen>
+    <UseRefCounting>true</UseRefCounting>
+    <LinkMode>SdkOnly</LinkMode>
+    <HttpClientHandler>HttpClientHandler</HttpClientHandler>
+    <TlsProvider>Default</TlsProvider>
+    <XamMacArch></XamMacArch>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="System" />
+    <Reference Include="System.Core" />
+    <Reference Include="Xamarin.Mac" />
+  </ItemGroup>
+  <ItemGroup>
+    <ImageAsset Include="Assets.xcassets\AppIcon.appiconset\Contents.json" />
+    <ImageAsset Include="Assets.xcassets\AppIcon.appiconset\AppIcon-128.png" />
+    <ImageAsset Include="Assets.xcassets\AppIcon.appiconset\AppIcon-128%402x.png" />
+    <ImageAsset Include="Assets.xcassets\AppIcon.appiconset\AppIcon-16.png" />
+    <ImageAsset Include="Assets.xcassets\AppIcon.appiconset\AppIcon-16%402x.png" />
+    <ImageAsset Include="Assets.xcassets\AppIcon.appiconset\AppIcon-256.png" />
+    <ImageAsset Include="Assets.xcassets\AppIcon.appiconset\AppIcon-256%402x.png" />
+    <ImageAsset Include="Assets.xcassets\AppIcon.appiconset\AppIcon-32.png" />
+    <ImageAsset Include="Assets.xcassets\AppIcon.appiconset\AppIcon-32%402x.png" />
+    <ImageAsset Include="Assets.xcassets\AppIcon.appiconset\AppIcon-512.png" />
+    <ImageAsset Include="Assets.xcassets\AppIcon.appiconset\AppIcon-512%402x.png" />
+    <ImageAsset Include="Assets.xcassets\Contents.json" />
+  </ItemGroup>
+  <ItemGroup>
+    <Folder Include="Resources\" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="Info.plist" />
+    <None Include="Entitlements.plist" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="Main.cs" />
+    <Compile Include="AppDelegate.cs" />
+    <Compile Include="ViewController.cs" />
+    <Compile Include="ViewController.designer.cs">
+      <DependentUpon>ViewController.cs</DependentUpon>
+    </Compile>
+  </ItemGroup>
+  <ItemGroup>
+    <InterfaceDefinition Include="Main.storyboard" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\Facebook.Yoga.Mac.csproj">
+      <Project>{19A1C7D7-C9CC-476A-B604-DF6A3DE1BA71}</Project>
+      <Name>Facebook.Yoga.Mac</Name>
+    </ProjectReference>
+  </ItemGroup>
+  <Import Project="$(MSBuildExtensionsPath)\Xamarin\Mac\Xamarin.Mac.CSharp.targets" />
+</Project>
\ No newline at end of file
diff --git a/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/Info.plist b/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/Info.plist
new file mode 100644
index 00000000..48cc59ce
--- /dev/null
+++ b/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/Info.plist
@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleName</key>
+	<string>Facebook.Yoga.Mac.Test</string>
+	<key>CFBundleIdentifier</key>
+	<string>com.companyname.facebook-yoga-mac-test</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSMinimumSystemVersion</key>
+	<string>10.11</string>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>en</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleSignature</key>
+	<string>????</string>
+	<key>NSHumanReadableCopyright</key>
+	<string>${AuthorCopyright}</string>
+	<key>NSPrincipalClass</key>
+	<string>NSApplication</string>
+	<key>NSMainStoryboardFile</key>
+	<string>Main</string>
+	<key>XSAppIconAssets</key>
+	<string>Assets.xcassets/AppIcon.appiconset</string>
+	
+</dict>
+</plist>
diff --git a/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/Main.cs b/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/Main.cs
new file mode 100644
index 00000000..e25f1106
--- /dev/null
+++ b/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/Main.cs
@@ -0,0 +1,13 @@
+using AppKit;
+
+namespace Facebook.Yoga.Mac.Test
+{
+	static class MainClass
+	{
+		static void Main(string[] args)
+		{
+			NSApplication.Init();
+			NSApplication.Main(args);
+		}
+	}
+}
diff --git a/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/Main.storyboard b/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/Main.storyboard
new file mode 100644
index 00000000..1d8f728d
--- /dev/null
+++ b/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/Main.storyboard
@@ -0,0 +1,681 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.Cocoa.Storyboard.XIB" version="3.0" toolsVersion="6198" systemVersion="14A297b" targetRuntime="MacOSX.Cocoa" propertyAccessControl="none" useAutolayout="YES" initialViewController="B8D-0N-5wS">
+	<dependencies>
+		<plugIn identifier="com.apple.InterfaceBuilder.CocoaPlugin" version="6198" />
+	</dependencies>
+	<scenes>
+		<!--Application-->
+		<scene sceneID="JPo-4y-FX3">
+			<objects>
+				<application id="hnw-xV-0zn" sceneMemberID="viewController">
+					<menu key="mainMenu" title="Main Menu" systemMenu="main" id="AYu-sK-qS6">
+						<items>
+							<menuItem title="Facebook.Yoga.Mac.Test" id="1Xt-HY-uBw">
+								<modifierMask key="keyEquivalentModifierMask" />
+								<menu key="submenu" title="Facebook.Yoga.Mac.Test" systemMenu="apple" id="uQy-DD-JDr">
+									<items>
+										<menuItem title="About Facebook.Yoga.Mac.Test" id="5kV-Vb-QxS">
+											<modifierMask key="keyEquivalentModifierMask" />
+											<connections>
+												<action selector="orderFrontStandardAboutPanel:" target="Ady-hI-5gd" id="Exp-CZ-Vem" />
+											</connections>
+										</menuItem>
+										<menuItem isSeparatorItem="YES" id="VOq-y0-SEH" />
+										<menuItem title="Preferences…" keyEquivalent="," id="BOF-NM-1cW" />
+										<menuItem isSeparatorItem="YES" id="wFC-TO-SCJ" />
+										<menuItem title="Services" id="NMo-om-nkz">
+											<modifierMask key="keyEquivalentModifierMask" />
+											<menu key="submenu" title="Services" systemMenu="services" id="hz9-B4-Xy5" />
+										</menuItem>
+										<menuItem isSeparatorItem="YES" id="4je-JR-u6R" />
+										<menuItem title="Hide Facebook.Yoga.Mac.Test" keyEquivalent="h" id="Olw-nP-bQN">
+											<connections>
+												<action selector="hide:" target="Ady-hI-5gd" id="PnN-Uc-m68" />
+											</connections>
+										</menuItem>
+										<menuItem title="Hide Others" keyEquivalent="h" id="Vdr-fp-XzO">
+											<modifierMask key="keyEquivalentModifierMask" option="YES" command="YES" />
+											<connections>
+												<action selector="hideOtherApplications:" target="Ady-hI-5gd" id="VT4-aY-XCT" />
+											</connections>
+										</menuItem>
+										<menuItem title="Show All" id="Kd2-mp-pUS">
+											<modifierMask key="keyEquivalentModifierMask" />
+											<connections>
+												<action selector="unhideAllApplications:" target="Ady-hI-5gd" id="Dhg-Le-xox" />
+											</connections>
+										</menuItem>
+										<menuItem isSeparatorItem="YES" id="kCx-OE-vgT" />
+										<menuItem title="Quit Facebook.Yoga.Mac.Test" keyEquivalent="q" id="4sb-4s-VLi">
+											<connections>
+												<action selector="terminate:" target="Ady-hI-5gd" id="Te7-pn-YzF" />
+											</connections>
+										</menuItem>
+									</items>
+								</menu>
+							</menuItem>
+							<menuItem title="File" id="dMs-cI-mzQ">
+								<modifierMask key="keyEquivalentModifierMask" />
+								<menu key="submenu" title="File" id="bib-Uj-vzu">
+									<items>
+										<menuItem title="New" keyEquivalent="n" id="Was-JA-tGl">
+											<connections>
+												<action selector="newDocument:" target="Ady-hI-5gd" id="4Si-XN-c54" />
+											</connections>
+										</menuItem>
+										<menuItem title="Open…" keyEquivalent="o" id="IAo-SY-fd9">
+											<connections>
+												<action selector="openDocument:" target="Ady-hI-5gd" id="bVn-NM-KNZ" />
+											</connections>
+										</menuItem>
+										<menuItem title="Open Recent" id="tXI-mr-wws">
+											<modifierMask key="keyEquivalentModifierMask" />
+											<menu key="submenu" title="Open Recent" systemMenu="recentDocuments" id="oas-Oc-fiZ">
+												<items>
+													<menuItem title="Clear Menu" id="vNY-rz-j42">
+														<modifierMask key="keyEquivalentModifierMask" />
+														<connections>
+															<action selector="clearRecentDocuments:" target="Ady-hI-5gd" id="Daa-9d-B3U" />
+														</connections>
+													</menuItem>
+												</items>
+											</menu>
+										</menuItem>
+										<menuItem isSeparatorItem="YES" id="m54-Is-iLE" />
+										<menuItem title="Close" keyEquivalent="w" id="DVo-aG-piG">
+											<connections>
+												<action selector="performClose:" target="Ady-hI-5gd" id="HmO-Ls-i7Q" />
+											</connections>
+										</menuItem>
+										<menuItem title="Save…" keyEquivalent="s" id="pxx-59-PXV">
+											<connections>
+												<action selector="saveDocument:" target="Ady-hI-5gd" id="teZ-XB-qJY" />
+											</connections>
+										</menuItem>
+										<menuItem title="Save As…" keyEquivalent="S" id="Bw7-FT-i3A">
+											<connections>
+												<action selector="saveDocumentAs:" target="Ady-hI-5gd" id="mDf-zr-I0C" />
+											</connections>
+										</menuItem>
+										<menuItem title="Revert to Saved" id="KaW-ft-85H">
+											<modifierMask key="keyEquivalentModifierMask" />
+											<connections>
+												<action selector="revertDocumentToSaved:" target="Ady-hI-5gd" id="iJ3-Pv-kwq" />
+											</connections>
+										</menuItem>
+										<menuItem isSeparatorItem="YES" id="aJh-i4-bef" />
+										<menuItem title="Page Setup…" keyEquivalent="P" id="qIS-W8-SiK">
+											<modifierMask key="keyEquivalentModifierMask" shift="YES" command="YES" />
+											<connections>
+												<action selector="runPageLayout:" target="Ady-hI-5gd" id="Din-rz-gC5" />
+											</connections>
+										</menuItem>
+										<menuItem title="Print…" keyEquivalent="p" id="aTl-1u-JFS">
+											<connections>
+												<action selector="print:" target="Ady-hI-5gd" id="qaZ-4w-aoO" />
+											</connections>
+										</menuItem>
+									</items>
+								</menu>
+							</menuItem>
+							<menuItem title="Edit" id="5QF-Oa-p0T">
+								<modifierMask key="keyEquivalentModifierMask" />
+								<menu key="submenu" title="Edit" id="W48-6f-4Dl">
+									<items>
+										<menuItem title="Undo" keyEquivalent="z" id="dRJ-4n-Yzg">
+											<connections>
+												<action selector="undo:" target="Ady-hI-5gd" id="M6e-cu-g7V" />
+											</connections>
+										</menuItem>
+										<menuItem title="Redo" keyEquivalent="Z" id="6dh-zS-Vam">
+											<connections>
+												<action selector="redo:" target="Ady-hI-5gd" id="oIA-Rs-6OD" />
+											</connections>
+										</menuItem>
+										<menuItem isSeparatorItem="YES" id="WRV-NI-Exz" />
+										<menuItem title="Cut" keyEquivalent="x" id="uRl-iY-unG">
+											<connections>
+												<action selector="cut:" target="Ady-hI-5gd" id="YJe-68-I9s" />
+											</connections>
+										</menuItem>
+										<menuItem title="Copy" keyEquivalent="c" id="x3v-GG-iWU">
+											<connections>
+												<action selector="copy:" target="Ady-hI-5gd" id="G1f-GL-Joy" />
+											</connections>
+										</menuItem>
+										<menuItem title="Paste" keyEquivalent="v" id="gVA-U4-sdL">
+											<connections>
+												<action selector="paste:" target="Ady-hI-5gd" id="UvS-8e-Qdg" />
+											</connections>
+										</menuItem>
+										<menuItem title="Paste and Match Style" keyEquivalent="V" id="WeT-3V-zwk">
+											<modifierMask key="keyEquivalentModifierMask" option="YES" command="YES" />
+											<connections>
+												<action selector="pasteAsPlainText:" target="Ady-hI-5gd" id="cEh-KX-wJQ" />
+											</connections>
+										</menuItem>
+										<menuItem title="Delete" id="pa3-QI-u2k">
+											<modifierMask key="keyEquivalentModifierMask" />
+											<connections>
+												<action selector="delete:" target="Ady-hI-5gd" id="0Mk-Ml-PaM" />
+											</connections>
+										</menuItem>
+										<menuItem title="Select All" keyEquivalent="a" id="Ruw-6m-B2m">
+											<connections>
+												<action selector="selectAll:" target="Ady-hI-5gd" id="VNm-Mi-diN" />
+											</connections>
+										</menuItem>
+										<menuItem isSeparatorItem="YES" id="uyl-h8-XO2" />
+										<menuItem title="Find" id="4EN-yA-p0u">
+											<modifierMask key="keyEquivalentModifierMask" />
+											<menu key="submenu" title="Find" id="1b7-l0-nxx">
+												<items>
+													<menuItem title="Find…" tag="1" keyEquivalent="f" id="Xz5-n4-O0W">
+														<connections>
+															<action selector="performFindPanelAction:" target="Ady-hI-5gd" id="cD7-Qs-BN4" />
+														</connections>
+													</menuItem>
+													<menuItem title="Find and Replace…" tag="12" keyEquivalent="f" id="YEy-JH-Tfz">
+														<modifierMask key="keyEquivalentModifierMask" option="YES" command="YES" />
+														<connections>
+															<action selector="performFindPanelAction:" target="Ady-hI-5gd" id="WD3-Gg-5AJ" />
+														</connections>
+													</menuItem>
+													<menuItem title="Find Next" tag="2" keyEquivalent="g" id="q09-fT-Sye">
+														<connections>
+															<action selector="performFindPanelAction:" target="Ady-hI-5gd" id="NDo-RZ-v9R" />
+														</connections>
+													</menuItem>
+													<menuItem title="Find Previous" tag="3" keyEquivalent="G" id="OwM-mh-QMV">
+														<connections>
+															<action selector="performFindPanelAction:" target="Ady-hI-5gd" id="HOh-sY-3ay" />
+														</connections>
+													</menuItem>
+													<menuItem title="Use Selection for Find" tag="7" keyEquivalent="e" id="buJ-ug-pKt">
+														<connections>
+															<action selector="performFindPanelAction:" target="Ady-hI-5gd" id="U76-nv-p5D" />
+														</connections>
+													</menuItem>
+													<menuItem title="Jump to Selection" keyEquivalent="j" id="S0p-oC-mLd">
+														<connections>
+															<action selector="centerSelectionInVisibleArea:" target="Ady-hI-5gd" id="IOG-6D-g5B" />
+														</connections>
+													</menuItem>
+												</items>
+											</menu>
+										</menuItem>
+										<menuItem title="Spelling and Grammar" id="Dv1-io-Yv7">
+											<modifierMask key="keyEquivalentModifierMask" />
+											<menu key="submenu" title="Spelling" id="3IN-sU-3Bg">
+												<items>
+													<menuItem title="Show Spelling and Grammar" keyEquivalent=":" id="HFo-cy-zxI">
+														<connections>
+															<action selector="showGuessPanel:" target="Ady-hI-5gd" id="vFj-Ks-hy3" />
+														</connections>
+													</menuItem>
+													<menuItem title="Check Document Now" keyEquivalent=";" id="hz2-CU-CR7">
+														<connections>
+															<action selector="checkSpelling:" target="Ady-hI-5gd" id="fz7-VC-reM" />
+														</connections>
+													</menuItem>
+													<menuItem isSeparatorItem="YES" id="bNw-od-mp5" />
+													<menuItem title="Check Spelling While Typing" id="rbD-Rh-wIN">
+														<modifierMask key="keyEquivalentModifierMask" />
+														<connections>
+															<action selector="toggleContinuousSpellChecking:" target="Ady-hI-5gd" id="7w6-Qz-0kB" />
+														</connections>
+													</menuItem>
+													<menuItem title="Check Grammar With Spelling" id="mK6-2p-4JG">
+														<modifierMask key="keyEquivalentModifierMask" />
+														<connections>
+															<action selector="toggleGrammarChecking:" target="Ady-hI-5gd" id="muD-Qn-j4w" />
+														</connections>
+													</menuItem>
+													<menuItem title="Correct Spelling Automatically" id="78Y-hA-62v">
+														<modifierMask key="keyEquivalentModifierMask" />
+														<connections>
+															<action selector="toggleAutomaticSpellingCorrection:" target="Ady-hI-5gd" id="2lM-Qi-WAP" />
+														</connections>
+													</menuItem>
+												</items>
+											</menu>
+										</menuItem>
+										<menuItem title="Substitutions" id="9ic-FL-obx">
+											<modifierMask key="keyEquivalentModifierMask" />
+											<menu key="submenu" title="Substitutions" id="FeM-D8-WVr">
+												<items>
+													<menuItem title="Show Substitutions" id="z6F-FW-3nz">
+														<modifierMask key="keyEquivalentModifierMask" />
+														<connections>
+															<action selector="orderFrontSubstitutionsPanel:" target="Ady-hI-5gd" id="oku-mr-iSq" />
+														</connections>
+													</menuItem>
+													<menuItem isSeparatorItem="YES" id="gPx-C9-uUO" />
+													<menuItem title="Smart Copy/Paste" id="9yt-4B-nSM">
+														<modifierMask key="keyEquivalentModifierMask" />
+														<connections>
+															<action selector="toggleSmartInsertDelete:" target="Ady-hI-5gd" id="3IJ-Se-DZD" />
+														</connections>
+													</menuItem>
+													<menuItem title="Smart Quotes" id="hQb-2v-fYv">
+														<modifierMask key="keyEquivalentModifierMask" />
+														<connections>
+															<action selector="toggleAutomaticQuoteSubstitution:" target="Ady-hI-5gd" id="ptq-xd-QOA" />
+														</connections>
+													</menuItem>
+													<menuItem title="Smart Dashes" id="rgM-f4-ycn">
+														<modifierMask key="keyEquivalentModifierMask" />
+														<connections>
+															<action selector="toggleAutomaticDashSubstitution:" target="Ady-hI-5gd" id="oCt-pO-9gS" />
+														</connections>
+													</menuItem>
+													<menuItem title="Smart Links" id="cwL-P1-jid">
+														<modifierMask key="keyEquivalentModifierMask" />
+														<connections>
+															<action selector="toggleAutomaticLinkDetection:" target="Ady-hI-5gd" id="Gip-E3-Fov" />
+														</connections>
+													</menuItem>
+													<menuItem title="Data Detectors" id="tRr-pd-1PS">
+														<modifierMask key="keyEquivalentModifierMask" />
+														<connections>
+															<action selector="toggleAutomaticDataDetection:" target="Ady-hI-5gd" id="R1I-Nq-Kbl" />
+														</connections>
+													</menuItem>
+													<menuItem title="Text Replacement" id="HFQ-gK-NFA">
+														<modifierMask key="keyEquivalentModifierMask" />
+														<connections>
+															<action selector="toggleAutomaticTextReplacement:" target="Ady-hI-5gd" id="DvP-Fe-Py6" />
+														</connections>
+													</menuItem>
+												</items>
+											</menu>
+										</menuItem>
+										<menuItem title="Transformations" id="2oI-Rn-ZJC">
+											<modifierMask key="keyEquivalentModifierMask" />
+											<menu key="submenu" title="Transformations" id="c8a-y6-VQd">
+												<items>
+													<menuItem title="Make Upper Case" id="vmV-6d-7jI">
+														<modifierMask key="keyEquivalentModifierMask" />
+														<connections>
+															<action selector="uppercaseWord:" target="Ady-hI-5gd" id="sPh-Tk-edu" />
+														</connections>
+													</menuItem>
+													<menuItem title="Make Lower Case" id="d9M-CD-aMd">
+														<modifierMask key="keyEquivalentModifierMask" />
+														<connections>
+															<action selector="lowercaseWord:" target="Ady-hI-5gd" id="iUZ-b5-hil" />
+														</connections>
+													</menuItem>
+													<menuItem title="Capitalize" id="UEZ-Bs-lqG">
+														<modifierMask key="keyEquivalentModifierMask" />
+														<connections>
+															<action selector="capitalizeWord:" target="Ady-hI-5gd" id="26H-TL-nsh" />
+														</connections>
+													</menuItem>
+												</items>
+											</menu>
+										</menuItem>
+										<menuItem title="Speech" id="xrE-MZ-jX0">
+											<modifierMask key="keyEquivalentModifierMask" />
+											<menu key="submenu" title="Speech" id="3rS-ZA-NoH">
+												<items>
+													<menuItem title="Start Speaking" id="Ynk-f8-cLZ">
+														<modifierMask key="keyEquivalentModifierMask" />
+														<connections>
+															<action selector="startSpeaking:" target="Ady-hI-5gd" id="654-Ng-kyl" />
+														</connections>
+													</menuItem>
+													<menuItem title="Stop Speaking" id="Oyz-dy-DGm">
+														<modifierMask key="keyEquivalentModifierMask" />
+														<connections>
+															<action selector="stopSpeaking:" target="Ady-hI-5gd" id="dX8-6p-jy9" />
+														</connections>
+													</menuItem>
+												</items>
+											</menu>
+										</menuItem>
+									</items>
+								</menu>
+							</menuItem>
+							<menuItem title="Format" id="jxT-CU-nIS">
+								<modifierMask key="keyEquivalentModifierMask" />
+								<menu key="submenu" title="Format" id="GEO-Iw-cKr">
+									<items>
+										<menuItem title="Font" id="Gi5-1S-RQB">
+											<modifierMask key="keyEquivalentModifierMask" />
+											<menu key="submenu" title="Font" systemMenu="font" id="aXa-aM-Jaq">
+												<items>
+													<menuItem title="Show Fonts" keyEquivalent="t" id="Q5e-8K-NDq" />
+													<menuItem title="Bold" tag="2" keyEquivalent="b" id="GB9-OM-e27" />
+													<menuItem title="Italic" tag="1" keyEquivalent="i" id="Vjx-xi-njq" />
+													<menuItem title="Underline" keyEquivalent="u" id="WRG-CD-K1S">
+														<connections>
+															<action selector="underline:" target="Ady-hI-5gd" id="FYS-2b-JAY" />
+														</connections>
+													</menuItem>
+													<menuItem isSeparatorItem="YES" id="5gT-KC-WSO" />
+													<menuItem title="Bigger" tag="3" keyEquivalent="+" id="Ptp-SP-VEL" />
+													<menuItem title="Smaller" tag="4" keyEquivalent="-" id="i1d-Er-qST" />
+													<menuItem isSeparatorItem="YES" id="kx3-Dk-x3B" />
+													<menuItem title="Kern" id="jBQ-r6-VK2">
+														<modifierMask key="keyEquivalentModifierMask" />
+														<menu key="submenu" title="Kern" id="tlD-Oa-oAM">
+															<items>
+																<menuItem title="Use Default" id="GUa-eO-cwY">
+																	<modifierMask key="keyEquivalentModifierMask" />
+																	<connections>
+																		<action selector="useStandardKerning:" target="Ady-hI-5gd" id="6dk-9l-Ckg" />
+																	</connections>
+																</menuItem>
+																<menuItem title="Use None" id="cDB-IK-hbR">
+																	<modifierMask key="keyEquivalentModifierMask" />
+																	<connections>
+																		<action selector="turnOffKerning:" target="Ady-hI-5gd" id="U8a-gz-Maa" />
+																	</connections>
+																</menuItem>
+																<menuItem title="Tighten" id="46P-cB-AYj">
+																	<modifierMask key="keyEquivalentModifierMask" />
+																	<connections>
+																		<action selector="tightenKerning:" target="Ady-hI-5gd" id="hr7-Nz-8ro" />
+																	</connections>
+																</menuItem>
+																<menuItem title="Loosen" id="ogc-rX-tC1">
+																	<modifierMask key="keyEquivalentModifierMask" />
+																	<connections>
+																		<action selector="loosenKerning:" target="Ady-hI-5gd" id="8i4-f9-FKE" />
+																	</connections>
+																</menuItem>
+															</items>
+														</menu>
+													</menuItem>
+													<menuItem title="Ligatures" id="o6e-r0-MWq">
+														<modifierMask key="keyEquivalentModifierMask" />
+														<menu key="submenu" title="Ligatures" id="w0m-vy-SC9">
+															<items>
+																<menuItem title="Use Default" id="agt-UL-0e3">
+																	<modifierMask key="keyEquivalentModifierMask" />
+																	<connections>
+																		<action selector="useStandardLigatures:" target="Ady-hI-5gd" id="7uR-wd-Dx6" />
+																	</connections>
+																</menuItem>
+																<menuItem title="Use None" id="J7y-lM-qPV">
+																	<modifierMask key="keyEquivalentModifierMask" />
+																	<connections>
+																		<action selector="turnOffLigatures:" target="Ady-hI-5gd" id="iX2-gA-Ilz" />
+																	</connections>
+																</menuItem>
+																<menuItem title="Use All" id="xQD-1f-W4t">
+																	<modifierMask key="keyEquivalentModifierMask" />
+																	<connections>
+																		<action selector="useAllLigatures:" target="Ady-hI-5gd" id="KcB-kA-TuK" />
+																	</connections>
+																</menuItem>
+															</items>
+														</menu>
+													</menuItem>
+													<menuItem title="Baseline" id="OaQ-X3-Vso">
+														<modifierMask key="keyEquivalentModifierMask" />
+														<menu key="submenu" title="Baseline" id="ijk-EB-dga">
+															<items>
+																<menuItem title="Use Default" id="3Om-Ey-2VK">
+																	<modifierMask key="keyEquivalentModifierMask" />
+																	<connections>
+																		<action selector="unscript:" target="Ady-hI-5gd" id="0vZ-95-Ywn" />
+																	</connections>
+																</menuItem>
+																<menuItem title="Superscript" id="Rqc-34-cIF">
+																	<modifierMask key="keyEquivalentModifierMask" />
+																	<connections>
+																		<action selector="superscript:" target="Ady-hI-5gd" id="3qV-fo-wpU" />
+																	</connections>
+																</menuItem>
+																<menuItem title="Subscript" id="I0S-gh-46l">
+																	<modifierMask key="keyEquivalentModifierMask" />
+																	<connections>
+																		<action selector="subscript:" target="Ady-hI-5gd" id="Q6W-4W-IGz" />
+																	</connections>
+																</menuItem>
+																<menuItem title="Raise" id="2h7-ER-AoG">
+																	<modifierMask key="keyEquivalentModifierMask" />
+																	<connections>
+																		<action selector="raiseBaseline:" target="Ady-hI-5gd" id="4sk-31-7Q9" />
+																	</connections>
+																</menuItem>
+																<menuItem title="Lower" id="1tx-W0-xDw">
+																	<modifierMask key="keyEquivalentModifierMask" />
+																	<connections>
+																		<action selector="lowerBaseline:" target="Ady-hI-5gd" id="OF1-bc-KW4" />
+																	</connections>
+																</menuItem>
+															</items>
+														</menu>
+													</menuItem>
+													<menuItem isSeparatorItem="YES" id="Ndw-q3-faq" />
+													<menuItem title="Show Colors" keyEquivalent="C" id="bgn-CT-cEk">
+														<connections>
+															<action selector="orderFrontColorPanel:" target="Ady-hI-5gd" id="mSX-Xz-DV3" />
+														</connections>
+													</menuItem>
+													<menuItem isSeparatorItem="YES" id="iMs-zA-UFJ" />
+													<menuItem title="Copy Style" keyEquivalent="c" id="5Vv-lz-BsD">
+														<modifierMask key="keyEquivalentModifierMask" option="YES" command="YES" />
+														<connections>
+															<action selector="copyFont:" target="Ady-hI-5gd" id="GJO-xA-L4q" />
+														</connections>
+													</menuItem>
+													<menuItem title="Paste Style" keyEquivalent="v" id="vKC-jM-MkH">
+														<modifierMask key="keyEquivalentModifierMask" option="YES" command="YES" />
+														<connections>
+															<action selector="pasteFont:" target="Ady-hI-5gd" id="JfD-CL-leO" />
+														</connections>
+													</menuItem>
+												</items>
+											</menu>
+										</menuItem>
+										<menuItem title="Text" id="Fal-I4-PZk">
+											<modifierMask key="keyEquivalentModifierMask" />
+											<menu key="submenu" title="Text" id="d9c-me-L2H">
+												<items>
+													<menuItem title="Align Left" keyEquivalent="{" id="ZM1-6Q-yy1">
+														<connections>
+															<action selector="alignLeft:" target="Ady-hI-5gd" id="zUv-R1-uAa" />
+														</connections>
+													</menuItem>
+													<menuItem title="Center" keyEquivalent="|" id="VIY-Ag-zcb">
+														<connections>
+															<action selector="alignCenter:" target="Ady-hI-5gd" id="spX-mk-kcS" />
+														</connections>
+													</menuItem>
+													<menuItem title="Justify" id="J5U-5w-g23">
+														<modifierMask key="keyEquivalentModifierMask" />
+														<connections>
+															<action selector="alignJustified:" target="Ady-hI-5gd" id="ljL-7U-jND" />
+														</connections>
+													</menuItem>
+													<menuItem title="Align Right" keyEquivalent="}" id="wb2-vD-lq4">
+														<connections>
+															<action selector="alignRight:" target="Ady-hI-5gd" id="r48-bG-YeY" />
+														</connections>
+													</menuItem>
+													<menuItem isSeparatorItem="YES" id="4s2-GY-VfK" />
+													<menuItem title="Writing Direction" id="H1b-Si-o9J">
+														<modifierMask key="keyEquivalentModifierMask" />
+														<menu key="submenu" title="Writing Direction" id="8mr-sm-Yjd">
+															<items>
+																<menuItem title="Paragraph" enabled="NO" id="ZvO-Gk-QUH">
+																	<modifierMask key="keyEquivalentModifierMask" />
+																</menuItem>
+																<menuItem id="YGs-j5-SAR">
+																	<string key="title">	Default</string>
+																	<modifierMask key="keyEquivalentModifierMask" />
+																	<connections>
+																		<action selector="makeBaseWritingDirectionNatural:" target="Ady-hI-5gd" id="qtV-5e-UBP" />
+																	</connections>
+																</menuItem>
+																<menuItem id="Lbh-J2-qVU">
+																	<string key="title">	Left to Right</string>
+																	<modifierMask key="keyEquivalentModifierMask" />
+																	<connections>
+																		<action selector="makeBaseWritingDirectionLeftToRight:" target="Ady-hI-5gd" id="S0X-9S-QSf" />
+																	</connections>
+																</menuItem>
+																<menuItem id="jFq-tB-4Kx">
+																	<string key="title">	Right to Left</string>
+																	<modifierMask key="keyEquivalentModifierMask" />
+																	<connections>
+																		<action selector="makeBaseWritingDirectionRightToLeft:" target="Ady-hI-5gd" id="5fk-qB-AqJ" />
+																	</connections>
+																</menuItem>
+																<menuItem isSeparatorItem="YES" id="swp-gr-a21" />
+																<menuItem title="Selection" enabled="NO" id="cqv-fj-IhA">
+																	<modifierMask key="keyEquivalentModifierMask" />
+																</menuItem>
+																<menuItem id="Nop-cj-93Q">
+																	<string key="title">	Default</string>
+																	<modifierMask key="keyEquivalentModifierMask" />
+																	<connections>
+																		<action selector="makeTextWritingDirectionNatural:" target="Ady-hI-5gd" id="lPI-Se-ZHp" />
+																	</connections>
+																</menuItem>
+																<menuItem id="BgM-ve-c93">
+																	<string key="title">	Left to Right</string>
+																	<modifierMask key="keyEquivalentModifierMask" />
+																	<connections>
+																		<action selector="makeTextWritingDirectionLeftToRight:" target="Ady-hI-5gd" id="caW-Bv-w94" />
+																	</connections>
+																</menuItem>
+																<menuItem id="RB4-Sm-HuC">
+																	<string key="title">	Right to Left</string>
+																	<modifierMask key="keyEquivalentModifierMask" />
+																	<connections>
+																		<action selector="makeTextWritingDirectionRightToLeft:" target="Ady-hI-5gd" id="EXD-6r-ZUu" />
+																	</connections>
+																</menuItem>
+															</items>
+														</menu>
+													</menuItem>
+													<menuItem isSeparatorItem="YES" id="fKy-g9-1gm" />
+													<menuItem title="Show Ruler" id="vLm-3I-IUL">
+														<modifierMask key="keyEquivalentModifierMask" />
+														<connections>
+															<action selector="toggleRuler:" target="Ady-hI-5gd" id="FOx-HJ-KwY" />
+														</connections>
+													</menuItem>
+													<menuItem title="Copy Ruler" keyEquivalent="c" id="MkV-Pr-PK5">
+														<modifierMask key="keyEquivalentModifierMask" control="YES" command="YES" />
+														<connections>
+															<action selector="copyRuler:" target="Ady-hI-5gd" id="71i-fW-3W2" />
+														</connections>
+													</menuItem>
+													<menuItem title="Paste Ruler" keyEquivalent="v" id="LVM-kO-fVI">
+														<modifierMask key="keyEquivalentModifierMask" control="YES" command="YES" />
+														<connections>
+															<action selector="pasteRuler:" target="Ady-hI-5gd" id="cSh-wd-qM2" />
+														</connections>
+													</menuItem>
+												</items>
+											</menu>
+										</menuItem>
+									</items>
+								</menu>
+							</menuItem>
+							<menuItem title="View" id="H8h-7b-M4v">
+								<modifierMask key="keyEquivalentModifierMask" />
+								<menu key="submenu" title="View" id="HyV-fh-RgO">
+									<items>
+										<menuItem title="Show Toolbar" keyEquivalent="t" id="snW-S8-Cw5">
+											<modifierMask key="keyEquivalentModifierMask" option="YES" command="YES" />
+											<connections>
+												<action selector="toggleToolbarShown:" target="Ady-hI-5gd" id="BXY-wc-z0C" />
+											</connections>
+										</menuItem>
+										<menuItem title="Customize Toolbar…" id="1UK-8n-QPP">
+											<modifierMask key="keyEquivalentModifierMask" />
+											<connections>
+												<action selector="runToolbarCustomizationPalette:" target="Ady-hI-5gd" id="pQI-g3-MTW" />
+											</connections>
+										</menuItem>
+									</items>
+								</menu>
+							</menuItem>
+							<menuItem title="Window" id="aUF-d1-5bR">
+								<modifierMask key="keyEquivalentModifierMask" />
+								<menu key="submenu" title="Window" systemMenu="window" id="Td7-aD-5lo">
+									<items>
+										<menuItem title="Minimize" keyEquivalent="m" id="OY7-WF-poV">
+											<connections>
+												<action selector="performMiniaturize:" target="Ady-hI-5gd" id="VwT-WD-YPe" />
+											</connections>
+										</menuItem>
+										<menuItem title="Zoom" id="R4o-n2-Eq4">
+											<modifierMask key="keyEquivalentModifierMask" />
+											<connections>
+												<action selector="performZoom:" target="Ady-hI-5gd" id="DIl-cC-cCs" />
+											</connections>
+										</menuItem>
+										<menuItem isSeparatorItem="YES" id="eu3-7i-yIM" />
+										<menuItem title="Bring All to Front" id="LE2-aR-0XJ">
+											<modifierMask key="keyEquivalentModifierMask" />
+											<connections>
+												<action selector="arrangeInFront:" target="Ady-hI-5gd" id="DRN-fu-gQh" />
+											</connections>
+										</menuItem>
+									</items>
+								</menu>
+							</menuItem>
+							<menuItem title="Help" id="wpr-3q-Mcd">
+								<modifierMask key="keyEquivalentModifierMask" />
+								<menu key="submenu" title="Help" systemMenu="help" id="F2S-fz-NVQ">
+									<items>
+										<menuItem title="Facebook.Yoga.Mac.Test Help" keyEquivalent="?" id="FKE-Sm-Kum">
+											<connections>
+												<action selector="showHelp:" target="Ady-hI-5gd" id="y7X-2Q-9no" />
+											</connections>
+										</menuItem>
+									</items>
+								</menu>
+							</menuItem>
+						</items>
+					</menu>
+					<connections>
+						<outlet property="delegate" destination="Voe-Tx-rLC" id="PrD-fu-P6m" />
+					</connections>
+				</application>
+				<customObject id="Voe-Tx-rLC" customClass="AppDelegate" customModuleProvider="" />
+				<customObject id="Ady-hI-5gd" userLabel="First Responder" customClass="NSResponder" sceneMemberID="firstResponder" />
+			</objects>
+			<point key="canvasLocation" x="75" y="0.0" />
+		</scene>
+		<!--Window Controller - Window-->
+		<scene sceneID="R2V-B0-nI4">
+			<objects>
+				<windowController id="B8D-0N-5wS" sceneMemberID="viewController">
+					<window key="window" title="Window" allowsToolTipsWhenApplicationIsInactive="NO" autorecalculatesKeyViewLoop="NO" oneShot="NO" releasedWhenClosed="NO" showsToolbarButton="NO" visibleAtLaunch="NO" animationBehavior="default" id="IQv-IB-iLA">
+						<windowStyleMask key="styleMask" titled="YES" closable="YES" miniaturizable="YES" resizable="YES" />
+						<windowPositionMask key="initialPositionMask" leftStrut="YES" rightStrut="YES" topStrut="YES" bottomStrut="YES" />
+						<rect key="contentRect" x="196" y="240" width="480" height="270" />
+						<rect key="screenRect" x="0.0" y="0.0" width="1680" height="1027" />
+					</window>
+					<connections>
+						<segue destination="XfG-lQ-9wD" kind="relationship" relationship="window.shadowedContentViewController" id="cq2-FE-JQM" />
+					</connections>
+				</windowController>
+				<customObject id="Oky-zY-oP4" userLabel="First Responder" customClass="NSResponder" sceneMemberID="firstResponder" />
+			</objects>
+			<point key="canvasLocation" x="75" y="250" />
+		</scene>
+		<!--View Controller-->
+		<scene sceneID="hIz-AP-VOD">
+			<objects>
+				<viewController id="XfG-lQ-9wD" customClass="ViewController" customModuleProvider="" sceneMemberID="viewController">
+					<view key="view" id="m2S-Jp-Qdl">
+						<rect key="frame" x="0.0" y="0.0" width="480" height="270" />
+						<autoresizingMask key="autoresizingMask" />
+					</view>
+				</viewController>
+				<customObject id="rPt-NT-nkU" userLabel="First Responder" customClass="NSResponder" sceneMemberID="firstResponder" />
+			</objects>
+			<point key="canvasLocation" x="75" y="655" />
+		</scene>
+	</scenes>
+</document>
diff --git a/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/ViewController.cs b/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/ViewController.cs
new file mode 100644
index 00000000..3e1a6b1b
--- /dev/null
+++ b/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/ViewController.cs
@@ -0,0 +1,83 @@
+using System;
+
+using AppKit;
+using Foundation;
+using CoreGraphics;
+
+namespace Facebook.Yoga.Mac.Test
+{
+	public static class NSViewYogaExtensions
+	{
+		public static void ApplyYogaLayout(this NSView view, YogaNode n)
+		{
+			view.Frame = new CGRect(n.LayoutX, n.LayoutY, n.LayoutWidth, n.LayoutHeight);
+			// This assumes your YogaNode and NSView children were inserted in same order
+			for (int i = 0; i < n.Count; ++i) {
+				YogaNode childNode = n[i];
+				view.Subviews[i].Frame = new CGRect (childNode.LayoutX, childNode.LayoutY, childNode.LayoutWidth, childNode.LayoutHeight);
+			}
+		}
+	}
+	
+	public partial class ViewController : NSViewController
+	{
+		public ViewController(IntPtr handle) : base(handle)
+		{
+		}
+
+		public override void ViewDidLoad()
+		{
+			base.ViewDidLoad ();
+
+			NSImage image = NSImage.ImageNamed (NSImageName.TrashFull);
+
+			NSView root = CreateViewHierarchy (image);
+
+			var rootNode = CalculateLayout (image.Size);
+
+			root.ApplyYogaLayout (rootNode);
+
+			View.AddSubview (root);
+		}
+
+		static NSView CreateViewHierarchy (NSImage image)
+		{
+			var root = new NSView ();
+			NSImageView imageView = new NSImageView () {
+				Image = image
+			};
+			root.AddSubview (imageView);
+
+			NSTextView text = new NSTextView () {
+				Value = "Hello World",
+			};
+			root.AddSubview (text);
+			return root;
+		}
+
+		static YogaNode CalculateLayout (CGSize imageSize)
+		{
+			var rootNode = new YogaNode () {
+				Width = 400,
+				Height = 120,
+				FlexDirection = YogaFlexDirection.Row
+			};
+			rootNode.SetPadding (YogaEdge.All, 20);
+
+			var imageNode = new YogaNode () {
+				Width = (float)imageSize.Width,
+			};
+			imageNode.SetMargin (YogaEdge.End, 20);
+
+			var textNode = new YogaNode () {
+				AlignSelf = YogaAlign.Center,
+				FlexGrow = 1,
+			};
+			rootNode.Insert (0, imageNode);
+			rootNode.Insert (1, textNode);
+			rootNode.CalculateLayout ();
+
+			return rootNode;
+		}
+	}
+}
diff --git a/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/ViewController.designer.cs b/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/ViewController.designer.cs
new file mode 100644
index 00000000..1cf1e327
--- /dev/null
+++ b/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.Test/ViewController.designer.cs
@@ -0,0 +1,18 @@
+// WARNING
+//
+// This file has been generated automatically by Xamarin Studio to store outlets and
+// actions made in the UI designer. If it is removed, they will be lost.
+// Manual changes to this file may not be handled correctly.
+//
+using Foundation;
+
+namespace Facebook.Yoga.Mac.Test
+{
+	[Register("ViewController")]
+	partial class ViewController
+	{
+		void ReleaseDesignerOutlets()
+		{
+		}
+	}
+}
diff --git a/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.csproj b/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.csproj
new file mode 100644
index 00000000..cfef31eb
--- /dev/null
+++ b/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.csproj
@@ -0,0 +1,121 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{19A1C7D7-C9CC-476A-B604-DF6A3DE1BA71}</ProjectGuid>
+    <ProjectTypeGuids>{810C163F-4746-4721-8B8E-88A3673A62EA};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
+    <OutputType>Library</OutputType>
+    <RootNamespace>Facebook.Yoga.Mac</RootNamespace>
+    <AssemblyName>Facebook.Yoga.Mac</AssemblyName>
+    <MacResourcePrefix>Resources</MacResourcePrefix>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug</OutputPath>
+    <DefineConstants>__UNIFIED__;DEBUG;MONOMAC</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+    <AllowUnsafeBlocks>false</AllowUnsafeBlocks>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release</OutputPath>
+    <DefineConstants>__UNIFIED__;MONOMAC</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+    <AllowUnsafeBlocks>false</AllowUnsafeBlocks>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="System" />
+    <Reference Include="System.Core" />
+    <Reference Include="Xamarin.Mac" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="..\YogaWrap.cs">
+      <Link>YogaWrap.cs</Link>
+    </Compile>
+    <Compile Include="..\YogaSize.cs">
+      <Link>YogaSize.cs</Link>
+    </Compile>
+    <Compile Include="..\YogaPrintOptions.cs">
+      <Link>YogaPrintOptions.cs</Link>
+    </Compile>
+    <Compile Include="..\YogaPositionType.cs">
+      <Link>YogaPositionType.cs</Link>
+    </Compile>
+    <Compile Include="..\YogaOverflow.cs">
+      <Link>YogaOverflow.cs</Link>
+    </Compile>
+    <Compile Include="..\YogaNode.cs">
+      <Link>YogaNode.cs</Link>
+    </Compile>
+    <Compile Include="..\YogaNode.Create.cs">
+      <Link>YogaNode.Create.cs</Link>
+    </Compile>
+    <Compile Include="..\YogaMeasureMode.cs">
+      <Link>YogaMeasureMode.cs</Link>
+    </Compile>
+    <Compile Include="..\YogaMeasureFunc.cs">
+      <Link>YogaMeasureFunc.cs</Link>
+    </Compile>
+    <Compile Include="..\YogaLogLevel.cs">
+      <Link>YogaLogLevel.cs</Link>
+    </Compile>
+    <Compile Include="..\YogaLogger.cs">
+      <Link>YogaLogger.cs</Link>
+    </Compile>
+    <Compile Include="..\YogaJustify.cs">
+      <Link>YogaJustify.cs</Link>
+    </Compile>
+    <Compile Include="..\YogaFlexDirection.cs">
+      <Link>YogaFlexDirection.cs</Link>
+    </Compile>
+    <Compile Include="..\YogaExperimentalFeature.cs">
+      <Link>YogaExperimentalFeature.cs</Link>
+    </Compile>
+    <Compile Include="..\YogaEdge.cs">
+      <Link>YogaEdge.cs</Link>
+    </Compile>
+    <Compile Include="..\YogaDirection.cs">
+      <Link>YogaDirection.cs</Link>
+    </Compile>
+    <Compile Include="..\YogaDimension.cs">
+      <Link>YogaDimension.cs</Link>
+    </Compile>
+    <Compile Include="..\YogaConstants.cs">
+      <Link>YogaConstants.cs</Link>
+    </Compile>
+    <Compile Include="..\YogaAlign.cs">
+      <Link>YogaAlign.cs</Link>
+    </Compile>
+    <Compile Include="..\Spacing.cs">
+      <Link>Spacing.cs</Link>
+    </Compile>
+    <Compile Include="..\Native.cs">
+      <Link>Native.cs</Link>
+    </Compile>
+    <Compile Include="..\MeasureOutput.cs">
+      <Link>MeasureOutput.cs</Link>
+    </Compile>
+    <Compile Include="..\MeasureFunction.cs">
+      <Link>MeasureFunction.cs</Link>
+    </Compile>
+  </ItemGroup>
+  <ItemGroup>
+    <NativeReference Include="libyoga.a">
+      <Kind>Static</Kind>
+      <SmartLink>False</SmartLink>
+    </NativeReference>
+  </ItemGroup>
+  <ItemGroup>
+    <ObjcBindingApiDefinition Include="ApiDefinition.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="CustomBuildAction.targets" />
+  </ItemGroup>
+  <Import Project="$(MSBuildExtensionsPath)\Xamarin\Mac\Xamarin.Mac.ObjcBinding.CSharp.targets" />
+  <Import Project="CustomBuildAction.targets" />  
+</Project>
diff --git a/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.sln b/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.sln
new file mode 100644
index 00000000..70254fb3
--- /dev/null
+++ b/csharp/Facebook.Yoga/mac/Facebook.Yoga.Mac.sln
@@ -0,0 +1,23 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 2012
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Facebook.Yoga.Mac.Test", "Facebook.Yoga.Mac.Test\Facebook.Yoga.Mac.Test.csproj", "{64E0AB97-A904-4607-A535-EEA5A966C09E}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Facebook.Yoga.Mac", "Facebook.Yoga.Mac.csproj", "{19A1C7D7-C9CC-476A-B604-DF6A3DE1BA71}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{64E0AB97-A904-4607-A535-EEA5A966C09E}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{64E0AB97-A904-4607-A535-EEA5A966C09E}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{64E0AB97-A904-4607-A535-EEA5A966C09E}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{64E0AB97-A904-4607-A535-EEA5A966C09E}.Release|Any CPU.Build.0 = Release|Any CPU
+		{19A1C7D7-C9CC-476A-B604-DF6A3DE1BA71}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{19A1C7D7-C9CC-476A-B604-DF6A3DE1BA71}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{19A1C7D7-C9CC-476A-B604-DF6A3DE1BA71}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{19A1C7D7-C9CC-476A-B604-DF6A3DE1BA71}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+EndGlobal