QPushButton color and background

[satanowicz]

What's the simplest way to change a button fonts color & background?
I've tried style sheets and came up with something like this (but it doesn't work)

QPushButton *friends = new QPushButton("Friends", imageLabel);
	friends->setFlat(true); 
	QObject::connect(friends, SIGNAL(clicked()),
		this, SLOT(updateHitPoints()));
	friends-> move(180,270);
 
	friends->setStyleSheet("background-color: yellow");

QPushButton *friends = new QPushButton("Friends", imageLabel);
	friends->setFlat(true); 
	QObject::connect(friends, SIGNAL(clicked()),
		this, SLOT(updateHitPoints()));
	friends-> move(180,270);

	friends->setStyleSheet("background-color: yellow");

To copy to clipboard, switch view to plain text mode