Popover not working

[ardiwine]

Looks like popover tintColor and backgroundImage properties are not working.

Using Titanium 4.0.0.GA. iOS 8.3. iPad 2 simulator.

Here's the sample code:

var customAppearance = require('dk.napp.appearance');

customAppearance.setGlobalStyling({
  popOver : {
        tintColor: 'yellow',
        backgroundImage:"/image/test.png",
    }
});

var rightButton = Ti.UI.createButton({title: 'Robin'});
    rightButton.addEventListener('click', function(e){
    alert("But green's the color of spring.");
});

var contentWindow = Ti.UI.createWindow({
    backgroundColor: 'green',
    rightNavButton: rightButton,
    title: 'Kermit',
    width: 250,
    height: 100
});

contentWindow.add(Ti.UI.createLabel({text: "It's not easy being green."}));

var popover = Ti.UI.iPad.createPopover({
    width: 250,
    height: 100,
    contentView: Ti.UI.iOS.createNavigationWindow({window: contentWindow})
});

popover.show();