title: Tkinter Checkbutton wont keep its check mark post color change
body: <p>So I have a black and white GUI and I need to use check boxes, well I set it up and the check box looks ok until I click it and then suddenly the check mark wont stay past my click. The issue comes from the line that starts changing the color of the button. But I need this color scheme, I also need to be able to see the checkmark though.</p>
  
  <pre><code>from Tkinter import *
  
  master = Tk()
  
  checkCmd= IntVar()
  checkCmd.set(False)
  
  test = Checkbutton(master, variable=checkCmd, onvalue=True, offvalue=False, text="Old Testament", \
              bg='black', fg='white', activebackground='black', activeforeground='white')
  test.pack()
  buttonCmd = Button(master, text="Run Checked Items").pack()
  
  
  mainloop()
  </code></pre>