Email Dialog barcolor property set does not work

I'm trying to use the code below to set the barcolor of the email dialog modal window, I know it's redundant but these are the two ways I used to try and set it:

var emailDialog = Ti.UI.createEmailDialog({
    barColor : 'green'
});
emailDialog.barColor = 'green';

This is being tested on the iOS 7.1 simulator and Titanium SDK 3.3.0.GA.