Using QItemDelegate on QTreeWidget changes selection background and text color

#include <QApplication>
#include <QMainWindow>
#include <QTreeWidget>
#include <QItemDelegate>
#include <QVBoxLayout>

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

    QMainWindow w;

    QWidget* centralWidget = new QWidget(&w);
    w.setCentralWidget(centralWidget);
    centralWidget->setLayout( new QVBoxLayout() );

    QTreeWidget* tree = new QTreeWidget();
    tree->setColumnCount(2);
    centralWidget->layout()->addWidget( tree );

    QTreeWidgetItem* item = new QTreeWidgetItem();
    item->setText( 0, "No QItemDelegate" );
    item->setText( 1, "With QItemDelegate" );

    tree->addTopLevelItem( item );
    tree->setItemDelegateForColumn( 1, new QItemDelegate() );
    
    w.show();
    return app.exec();
}