How do I display a tkinter application in fullscreen on macOS?

I am just learning python, and I am trying to make a window go full screen, which I have achieved, but I am now wanting to get rid of the title bar across the top. It currently looks like the image below, but I want it to also go over the Mac top toolbar at top (like a splash screen).

from tkinter import *
root = Tk()

root.attributes('-fullscreen', True)
root.attributes('-topmost', True)
root.overrideredirect(True)



def quitApp():
    # mlabel = Label (root, text = 'Close').pack()
    root.destroy()

# placing the button on my window
button = Button(text = 'QUIT', command = quitApp).pack()