How to get the white widget background?

I've got an older Today widget but if I compile and run on Sierra, the background is still vibrant dark and the background of the widget is black / dark. How do I make it show the light background color that all other widgets seem to have?

Had to add the following to the Info plist file:


<key>NSExtensionPointVersion</key>

<string>2.0</string>

How to get the white widget background?
 
 
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