button = ImageTk.PhotoImage(file="button.png")

canvas = tk.Canvas(width=200, heigh=200, borderwidth=0, highlightthickness=0)
canvas.grid()
canvas.create_rectangle(0,0,199,199, fill="blue")

canvas.create_image(0,0, image=button, anchor="nw")

button = ImageTk.PhotoImage(file="button.png")

canvas = tk.Canvas(width=200, heigh=200, borderwidth=0, highlightthickness=0)
canvas.grid()
canvas.create_rectangle(0,0,199,199, fill="blue")

buton = tk.Button(root, image=button)
canvas.create_window(0,0, window=buton, anchor="nw")