iOS: TableViewRow does not apply opacity to child views

const win = Ti.UI.createWindow({ backgroundColor: 'gray' });

const row = Ti.UI.createTableViewRow({

	height: 80,

	opacity: 0.4,

	backgroundColor: 'blue'

});

const label = Ti.UI.createLabel({

	text: 'This view should be affected by row opacity',

	textAlign: Ti.UI.TEXT_ALIGNMENT_CENTER,

	backgroundColor: 'red',

	width: '80%',

	height: '80%'

});

row.add(label);

const table = Ti.UI.createTableView({

  data: [ row ]

});

win.add(table);

win.open();