Блин! Как все-таки поменять фон у QLineEdit?

name_label->setStyleSheet("background-color: red");

QPalette p = lineEdit->palette();
p.setColor(QPalette::Base, Qt::red);
lineEdit->setPalette(p);
lineEdit->setFrame(false);

#include <QApplication>
#include <QLineEdit>

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

    QLineEdit *name_label = new QLineEdit;
    QPalette *p = new QPalette();
    p->setColor(QPalette::Base,Qt::red);
    name_label->setPalette(*p);
    name_label->setFrame(false);

    name_label->show();

    return a.exec();
}

QT += core gui
greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
TARGET = test
TEMPLATE = app
SOURCES += main.cpp

qmake test.pro && make && ./test