So far, we have relied on Tkinter to provide specific platform-based styling for our widgets. However, you can specify your own styling of widgets, such as their color, font size, border width, and relief. A brief introduction to styling features that are available in Tkinter is supplied in the following section.
You may recall that we can specify widget options at the time of its instantiation, as follows:
my_button = tk.Button(parent, **configuration options)
Alternatively, you can specify the widget options by using configure() in the following way:
Styling options are also specified as options to the widgets either at the time of creating the widgets, or later by using the configure option. ...