from tkinter import *
import time

root = Tk()

message = StringVar()
label = Label(root, textvariable=message, fg='black', anchor=CENTER)
counter = 0


def gas():
    root.configure(background='DarkOrchid3')
    message.set("gas")
    label.config(bg='DarkOrchid3')


def doorbell():
    root.configure(background='chartreuse3')
    message.set("doorbell")
    label.config(bg='chartreuse3')


def fridge():
    root.configure(background='RoyalBlue2')
    message.set("fridge")
    label.config(bg='RoyalBlue2')


def timer():
    root.configure(background='orange')
    message.set("timer")
    label.config(bg='orange')


def base():
    root.configure(background='snow')
    message.set("hoi")
    label.config(bg='snow')


def switchScreens():
    root.after(1000, base())
    root.after(1000, gas())
    root.after(1000, doorbell())
    root.after(1000, fridge())
    root.after(1000, timer())

def switch():
    global counter

    if counter == 0:
        base()
    elif counter == 1:
        gas()
    elif counter == 2:
        fridge()
    elif counter == 3:
        timer()
    elif counter == 4:
        doorbell()

    if counter == 4:
        counter = 0
    else:
        counter += 1


switchButton=Button(root, text='Change Color', command=switch)
exitButton=Button(root, text='Exit Program', command=root.destroy)

exitButton.pack()
switchButton.pack()
label.pack(fill=BOTH, expand=1)

switchScreens()

root.attributes('-fullscreen', True)
root = mainloop()