message: Switch back to built-in color of NSPopover (mac)
diff: <dependencies>
  <deployment identifier="macosx"/>
  <plugIn identifier="com.apple.InterfaceBuilder.CocoaPlugin" version="16096"/>
  - <capability name="Named colors" minToolsVersion="9.0"/>
  <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
  </dependencies>
  <objects>
  <rect key="frame" x="0.0" y="0.0" width="292" height="45"/>
  <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
  </view>
  - <color key="fillColor" name="onboarding-hint-background-color"/>
  </box>
  <textField verticalHuggingPriority="750" horizontalCompressionResistancePriority="250" translatesAutoresizingMaskIntoConstraints="NO" id="jYZ-L3-Wrw">
  <rect key="frame" x="13" y="15" width="246" height="15"/>
  <textFieldCell key="cell" selectable="YES" title="Multiline Label" id="5Mi-HB-13h">
  - <font key="font" metaFont="controlContent"/>
  - <color key="textColor" name="textBackgroundColor" catalog="System" colorSpace="catalog"/>
  + <font key="font" metaFont="label" size="12"/>
  + <color key="textColor" name="labelColor" catalog="System" colorSpace="catalog"/>
  <color key="backgroundColor" name="textBackgroundColor" catalog="System" colorSpace="catalog"/>
  </textFieldCell>
  </textField>
  </objects>
  <resources>
  <image name="close-button" width="7" height="7"/>
  - <namedColor name="onboarding-hint-background-color">
  - <color red="0.023529411764705882" green="0.66666666666666663" blue="0.96078431372549022" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
  - </namedColor>
  </resources>
  </document>
  