10QLinearGradient linearGrad(QPointF(100, 100), QPointF(200, 200));
11linearGrad.setColorAt(0, Qt::black);
12linearGrad.setColorAt(1, Qt::white);
17QRadialGradient radialGrad(QPointF(100, 100), 100);
18radialGrad.setColorAt(0, Qt::red);
19radialGrad.setColorAt(0.5, Qt::blue);
20radialGrad.setColorAt(1, Qt::green);