[TIMOB-19879] NavigationWindow backgroundColor not working

NB: This was originally posted to community.appcelerator.com but then I was asked to post the question here. The following is a copy of what was posted at community.appcelerator.com. https://community.appcelerator.com/topic/3683/navigationwindow-backgroundcolor-not-working ---- I'm trying to set the NavigationWindow title bar to a specific background color but whatever hex value that is put in, the rendered color is a very light shade of the color I'd like. How do I get the title bar background to be rendered in the exact color that is put in? Rendered color (#E2EFF7): !5192C1 ipad.jpg|thumbnail! Expected color (#5192C1): !5192C1 expected.jpg|thumbnail! NB: For comparison, setting the background color to black results in a very light shade of gray (no screenshot at the moment).

"NavigationWindow": {
    backgroundColor: "#5192C1"
}

<Alloy>
    <!-- iPad -->
    <SplitWindow id="index" platform="ios" formFactor="tablet">
        <NavigationWindow>
            <Require src="master" id="master" />
        </NavigationWindow>
        <NavigationWindow>
            <Require src="detail" id="detail" />
        </NavigationWindow>
    </SplitWindow>
</Alloy>

Appcelerator Studio 4.3.2 iPad Air Thank you in advance!