botón GUI en color tkinter
import Image as PIL
import ImageTk
Better Badger
import Image as PIL
import ImageTk
button = tk.Button(root, text="Sign Out", bg='red', command= lambda: controller.show_frame(10)) #, highlightthickness = 0, bd = 0)
button.grid(row=3, column=0, sticky='ne', padx=20, pady=50)