Trying to make it CTk, but STATE not working

I have this script in Tk and it works fine. I wanted to make it dark and add hover options, so I changed it to CTk, but now it's not working. Can someone please help me fix this? I have both scripts inhere to show.

(This is part of a bigger script, where it checks multiple buttons to see if it is disabled. If so, show a Label.)

I think there's a problem with this line:

if Button['state'] == DISABLED:

This one works:

from tkinter import *

def ChangeState():
    Button.configure(state="disabled")
    if Button['state'] == DISABLED:
        Button.configure(bg="Green")

window = Tk()

Button = Button(window, text = "Button", command=ChangeState)
Button.pack()

window.mainloop()

This one doens't work:

from customtkinter import *

def ChangeState():
    Button.configure(state="disabled")
    if Button['state'] == DISABLED:
        Button.configure(fg_color="Green")

window = CTk()

Button = CTkButton(window, text = "Button", hover=False, command=ChangeState)
Button.pack()

window.mainloop()