examples/csharp/HelloworldXamarin/iOS/Main.storyboard

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="6750" systemVersion="14C109" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" initialViewController="BYZ-38-t0r">
    <dependencies>
        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="6735" />
    </dependencies>
    <scenes>
        <!--View Controller-->
        <scene sceneID="tne-QT-ifu">
            <objects>
                <viewController id="BYZ-38-t0r" customClass="ViewController" sceneMemberID="viewController">
                    <layoutGuides>
                        <viewControllerLayoutGuide type="top" id="y3c-jy-aDJ" />
                        <viewControllerLayoutGuide type="bottom" id="wfy-db-euE" />
                    </layoutGuides>
                    <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
                        <rect key="frame" x="0.0" y="0.0" width="600" height="600" />
                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES" />
                        <subviews>
                            <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="oBE-Ac-vcx">
                                <rect key="frame" x="224" y="285" width="152" height="30" />
                                <state key="normal" title="Hello World, Click Me!">
                                    <color key="titleShadowColor" white="0.5" alpha="1" colorSpace="calibratedWhite" />
                                </state>
                            </button>
                        </subviews>
                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite" />
                        <constraints>
                            <constraint firstItem="oBE-Ac-vcx" firstAttribute="centerX" secondItem="8bC-Xf-vdC" secondAttribute="centerX" id="HiD-uS-i16" />
                            <constraint firstItem="oBE-Ac-vcx" firstAttribute="centerY" secondItem="8bC-Xf-vdC" secondAttribute="centerY" id="YgX-7e-bMc" />
                        </constraints>
                    </view>
                    <connections>
                        <outlet property="Button" destination="oBE-Ac-vcx" id="OkX-0Z-gth" />
                    </connections>
                </viewController>
                <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder" />
            </objects>
        </scene>
    </scenes>
</document>