Background color animation

[cszawisza]

Hi!

I want to animate changing of background color in a window using QPropertyAnimation

QPalette start;
    start.setColor(QPalette::Window, QColor(1,255,0));
 
    QPalette stop;
    stop.setColor(QPalette::Window, QColor(255,255,255));
    animation = new QPropertyAnimation(this, "palette");
    animation->setDuration(100);
    animation->setStartValue(start);
    animation->setEndValue(stop);
    animation->setLoopCount(-1);
    animation->start();

QPalette start;
    start.setColor(QPalette::Window, QColor(1,255,0));

    QPalette stop;
    stop.setColor(QPalette::Window, QColor(255,255,255));
    animation = new QPropertyAnimation(this, "palette");
    animation->setDuration(100);
    animation->setStartValue(start);
    animation->setEndValue(stop);
    animation->setLoopCount(-1);
    animation->start();

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But after "starting" the animation nothing happen...
Is there a way to change the background color of window by simple calling some property? (Without overloading or creating own properties by Q_PROPERTY)