PyQt Painter shape as button [duplicate]

import sysfrom PyQt6 import QtWidgets, QtGui, QtCoreclass PainterButton(QtWidgets.QWidget):    def __init__(self):        super().__init__()    def paintEvent(self, event):        painter = QtGui.QPainter(self)        painter.setPen(QtGui.QPen(QtCore.Qt.GlobalColor.blue, 5))        painter.setBrush(QtGui.QBrush(QtCore.Qt.GlobalColor.gray))        painter.drawRect(20,20,300,300)if __name__ == '__main__':    app = QtWidgets.QApplication(sys.argv)    w = PainterButton()    w.show()    sys.exit(app.exec())

I'm new in pyqt. How can use a drawed shape using pyqt qpainter as a button, so i want when mouse cursor is on it, its color to be changed. how can i do it?

How can change qpainter color when mouse is over it? thanks for any suggesions