PyQt5 – Background color to checked indicator in Check Box

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In this article we will see how to set an background color to an indicator when it is in checked state, when it gets unchecked it colors go to default.

In order to set background color to indicator we have to edit the style sheet used with the check box object and in that we have to change the background color for the checked indicator. Below is the style sheet code.

QCheckBox::indicator:checked
{
background-color : red;
}

Below is the implementation.

# importing libraries 
from PyQt5.QtWidgets import * 
from PyQt5 import QtCore, QtGui 
from PyQt5.QtGui import * 
from PyQt5.QtCore import * 
import sys 
  
  
class Window(QMainWindow): 
  
    def __init__(self): 
        super().__init__() 
  
        # setting title 
        self.setWindowTitle("Python ") 
  
        # setting geometry 
        self.setGeometry(100, 100, 600, 400) 
  
        # calling method 
        self.UiComponents() 
  
        # showing all the widgets 
        self.show() 
  
    # method for widgets 
    def UiComponents(self): 
  
        # creating the check-box 
        checkbox = QCheckBox('Geek ?', self) 
  
        # setting geometry of check box 
        checkbox.setGeometry(200, 150, 100, 30) 
  
        # adding background color to the indicator 
        # when it is in checked state 
        checkbox.setStyleSheet("QCheckBox::indicator:checked"
                               "{"
                               "background-color : red;"
                               "}") 
  
# create pyqt5 app 
App = QApplication(sys.argv) 
  
# create the instance of our Window 
window = Window() 
  
# start the app 
sys.exit(App.exec()) 