代码如下

int main(int argc, char *argv[])
{
	QApplication a(argc, argv);

    //QSurfaceFormat::setDefaultFormat(QVTKOpenGLStereoWidget::defaultFormat());
    QPalette darkpalette;

    a.setStyle(QStyleFactory::create("Fusion"));
    darkpalette.setColor(QPalette::Window, QColor(53, 53, 53));
    darkpalette.setColor(QPalette::WindowText, QColor(255, 255, 255));
    darkpalette.setColor(QPalette::Base, QColor(15, 15, 15));
    darkpalette.setColor(QPalette::AlternateBase, QColor(53, 53, 53));
    darkpalette.setColor(QPalette::ToolTipBase, QColor(255, 255, 255));
    darkpalette.setColor(QPalette::ToolTipText, QColor(255, 255, 255));
    darkpalette.setColor(QPalette::Text, QColor(255, 255, 255));
    darkpalette.setColor(QPalette::Button, QColor(53, 53, 53));
    darkpalette.setColor(QPalette::ButtonText, QColor(255, 255, 255));
    darkpalette.setColor(QPalette::BrightText, QColor(255, 0, 0));
    darkpalette.setColor(QPalette::Highlight, QColor(142, 45, 197).lighter());
    darkpalette.setColor(QPalette::HighlightedText, QColor(0, 0, 0));
	a.setPalette(darkpalette);

    //vtkObject::GlobalWarningDisplayOff();

    CMainWidget w;
	w.showMaximized();

	return a.exec();
}

显示界面效果如下

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