How to make a QQuickView window transparent as well as its container widget

[DBoosalis]

I have two widgets in a stack, a basic label that has a red background and a QQuicIVew in a widget from QWidgert::createWindowContainer. The qml code has only a small blue rectangle. I would like to be able to see the red label when the container widget is on top. I see the blue rectangle, but what is not blue is "black". I have these widgets on top of one anotehr with a stacklayou, and have trid a a grid laout. Nothing I have tried makes the QQuicView transparent.

@mainW->setLayout(grid);
label = new QLabel("HOWDY");
QPalette pal = label->palette();
pal.setColor(QPalette::Window,Qt::red);
pal.setColor(QPalette::WindowText,Qt::white);
label->setAutoFillBackground(true);
label->setPalette(pal);
QFont fnt = label->font();
fnt.setBold(true);
fnt.setPointSize(24);
label->setFont(fnt);
label->setAlignment(Qt::AlignCenter);
quickV = new QQuickView(QUrl("qrc:hithere.qml"));
quickV->setColor(Qt::transparent);

widget = QWidget::createWindowContainer(quickV,this);
pal= widget->palette();
pal.setColor( QPalette::Window, Qt::transparent );
widget->setPalette( pal );
widget->setAttribute(Qt::WA_TranslucentBackground);
widget->setAutoFillBackground(true); // tried false to
//widget->setBackgroundRole( QPalette::Window );
grid->addWidget(widget,0,0);
grid->addWidget(label,0,0);@

also tried stackLayout:
@ stack->setStackingMode(QStackedLayout::StackAll);
stack->insertWidget(0,label);
stack->insertWidget(1,widget);
stack->setCurrentIndex(1);@

QML is real simple:
import QtQuick 2.0

Rectangle {
width: 300
height: 200
color:"blue"
}

Is this possible, and help to get the top QML window/widget transparnt is greatly apprciated