Styling The Menu Bar in PyQT4 - python-3.x

Question

I am finishing up my application and I can't figure up how to change the MenuBar in pyqt4. I am using a dark and gray theme, and on windows the menu bar is white, and I would like it to be dark like the rest of the app. How do I change the background color of QMenu or QMenuBar colors In PyQt4. I have been able to change the drop downs, but the top bar with File | Tools | Help stays white. Properties I tried changing:
background-color: # Doesn't seem to do anything
color: # Only changes the text color not the background
alternate-background-color: # Doesn't seem to do anything
Maybe I just haven't found the right property to assign the background color to match the rest of the app, a little help? Thanks!

Answer 1

It looks fine on my PC.
class SubMenu(QMenuBar):
def __init__(self, parent=None):
super(SubMenu, self).__init__(parent)
self.addAction("File")
self.addAction("View")
self.setStyleSheet("""QMenuBar {
background-color: blue;
}""")
self.resize(320, 240)
if __name__ == '__main__':
app = QApplication(sys.argv)
m = SubMenu()
m.show()
app.exec_()
Style sheet with Items
class SubMenu(QMenuBar):
def __init__(self, parent=None):
super(SubMenu, self).__init__(parent)
self.addAction("File")
self.addAction("View")
self.setStyleSheet("""QMenuBar {
background-color: blue;
}
QMenuBar::item {
background: blue;
}""")
self.resize(320, 240)
if __name__ == '__main__':
app = QApplication(sys.argv)
m = SubMenu()
m.show()
app.exec_()

Answer 2

Hope this comment may help others someday.
PySide2, Python 3+
self.saveFile_action = QAction("&Save", self)
self.saveFile_action.setShortcut("Ctrl+S")
self.saveAllFile_action = QAction("Save &All", self)
self.saveAllFile_action.setShortcut("Ctrl+Shift+S")
self.menuBar = QMenuBar(self)
self.menuBar.setStyleSheet(
"""
QMenuBar
{
background-color: #333399;
color: #999;
}
QMenuBar::item
{
background-color: #333399;
color: #999;
}
QMenuBar::item::selected
{
background-color: #3399cc;
color: #fff;
}
QMenu
{
background-color: #3399cc;
color: #fff;
}
QMenu::item::selected
{
background-color: #333399;
color: #999;
}
"""
)
self.fileMenu = QMenu("&File", self.menuBar)
self.exportSubmenu = QMenu("&Export", self.fileMenu)
self.fileMenu.addSeparator()
self.fileMenu.addAction(self.saveFile_action)
self.fileMenu.addAction(self.saveAllFile_action)
self.fileMenu.addSeparator()
self.fileMenu.addAction(self.exportSubMenu.menuAction())
self.settinsMenu = QMenu("&Settings", self.menuBar)
self.helpMenu = QMenu("&Help", self.menuBar)
self.menuBar.addAction(self.fileMenu.menuAction())
self.menuBar.addAction(self.settingsMenu.menuAction())
self.menuBar.addAction(self.helpMenu.menuAction())