Not visible checkBox in ComboBox

[Mikeeeeee]

Hi!
I use qDarkStyle.
If I do this, then not visible checkBox in ComboBox. Maybe need set styleSheet for comboBox?

comboBox = QComboBox()
            comboBox.addItems(checkableParameter.arrayParameters)
            # self.arrayWidgets.append(comboBox)
            modelItems = QStandardItemModel()
            i = 0
            for parameter in checkableParameter.arrayParameters:
                # print(parameter)
                item = QStandardItem()
                item.setText(parameter)
                item.setCheckable(True)
                item.setCheckState(0)
                modelItems.setItem(i, item)
                i += 1
            comboBox.setModel(modelItems)

[Mikeeeeee]

It is work

class CheckBoxDelegate(QItemDelegate):
    def __init__(self, parent=None):
        super(CheckBoxDelegate, self).__init__(parent)

    def createEditor(parent, op, idx):
        self.editor = QCheckBox(parent)

            comboBox = QComboBox()
            comboBox.addItems(checkableParameter.arrayParameters)
            delegate = CheckBoxDelegate()
            comboBox.setItemDelegate(delegate)
            # self.arrayWidgets.append(comboBox)
            modelItems = QStandardItemModel()
            i = 0
            for parameter in checkableParameter.arrayParameters:
                # print(parameter)
                item = QStandardItem()
                item.setText(parameter)
                item.setCheckable(True)

                item.setFlags(QtCore.Qt.ItemIsUserCheckable | QtCore.Qt.ItemIsEnabled)
                item.setData(QtCore.Qt.Unchecked | QtCore.Qt.CheckStateRole)
                item.setCheckState(2)
                modelItems.setItem(i, item)
                i += 1
            comboBox.setModel(modelItems)