FlatCAM/AppGUI/preferences/OptionsGroupUI.py

from PyQt5 import QtWidgets


class OptionsGroupUI(QtWidgets.QGroupBox):
    app = None

    def __init__(self, title, parent=None):
        # QtGui.QGroupBox.__init__(self, title, parent=parent)
        super(OptionsGroupUI, self).__init__()
        self.setStyleSheet("""
        QGroupBox
        {
            font-size: 16px;
            font-weight: bold;
        }
        """)

        self.layout = QtWidgets.QVBoxLayout()
        self.setLayout(self.layout)