qssbackground-color: qlineargradient(spread:repeat, x1: 0, y1: 0, x2: 0, y2: 1, stop: 0#2ba0d6, stop: 1 #138abd);
widgetQLinearGradient linearGradient(0, 0, 0, 300);linearGradient.setColorAt(0.0, Qt::green);linearGradient.setColorAt(1.0, Qt::blue);QPalette pal;pal.setBrush(QPalette::Window, QBrus...