[Python] PyQt5 Styling QMenu Dropdown?

I made a QMenuBar with a QMenu with two actions. However I can't figure out how to style the dropdown that appears.

My attempt to style the dropdown just isn't working. From what I can tell, QAction can't be given styles, so I tried QMenu but that doesn't work either. So I'm not sure how to style this dropdown...

OS: Windows 11 Using PyQt5

from PyQt5.QtWidgets import QApplication, QWidget, QMenuBar, QMenu, QAction, QVBoxLayout, QMainWindow

class test(QMainWindow):
def __init__(self):
super(test, self).__init__()

self.setWindowTitle('test')
self.resize(200,200)

self.mainWindow = QWidget()

self.mainLayout = QVBoxLayout()

self.bar = QMenuBar()
self.menuItem = QMenu('Help')

self.bar.addMenu(self.menuItem)

self.menuAction = QAction('Action')

self.menuItem.addAction(self.menuAction)

self.mainLayout.addWidget(self.bar)

self.mainWindow.setStyleSheet("""
QWidget {
background-color: #222;
color: #cfcfcf;
font-family: Roboto;
font-size: 14pt;
}

QMenuBar {
background-color: #222;
padding-top: 4px;
}

QMenuBar::item {
border-radius: 4px;
border-width: 0;
padding: 4px 8px;
}

QMenuBar::item:selected {
background-color: #777777;
}

QMenu, QAction {
background-color: red;
border-radius: 4px;
border-width: 0;
}

QMenu::item {
color: blue;
}

QMenu::item:selected {
background-color: aqua;
color: orange;
}
""")
self.mainWindow.setLayout(self.mainLayout)
self.setCentralWidget(self.mainWindow)

if __name__ in '__main__':
app = QApplication([])
main = test()
main.show()
app.exec_()




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