# import necessary library from PyQt5.QtGui import QColor # create a green color object greenF = QColor(0, 255, 0)
# import necessary library import sys from PyQt5.QtWidgets import QApplication, QWidget from PyQt5.QtGui import QColor # create a QWidget app = QApplication(sys.argv) window = QWidget() # set the background color to green greenF = QColor(0, 255, 0) window.setStyleSheet("background-color: %s;" % greenF.name()) # show the window window.show() sys.exit(app.exec_())Brief Examples Explanation: 1. The first example creates a QColor object called "greenF" with a RGB value of (0, 255, 0), which represents the color green. 2. The second example creates a PyQt5 QWidget and sets the background color to the QColor object "greenF" using the setStyleSheet method. The resulting window will have a green background. Package Library: PyQt5.