In this chapter, we will customize our GUI using Python 3.6 and above. We will cover the following recipes:

• Creating message boxes – information, warning, and error
• How to create independent message boxes
• How to create the title of a tkinter window form
• Changing the icon of the main root window
• Using a spin box control
• Relief, sunken, and raised appearance of widgets
• Creating tooltips using Python
• Adding a progressbar to the GUI
• How to use the canvas widget