Simple Python script for monitor testing: show one color fullscreen

colors.py

# Based off snippet:
# http://unix.stackexchange.com/questions/195910/start-a-single-color-full-screen-from-the-terminal
import gtk
import sys
from itertools import cycle

def color(widget, event):
    colors = ['#FFFFFF', '#000000', '#FF0000', '#0000FF', '#008000', '#FFFF00']
    color.idx = (color.idx + 1) % len(colors)
    w.modify_bg(gtk.STATE_NORMAL, gtk.gdk.color_parse(colors[color.idx]))

w = gtk.Window()
w.set_default_size(200, 200)
w.add_events(gtk.gdk.KEY_PRESS_MASK | gtk.gdk.BUTTON_PRESS_MASK | gtk.gdk.SCROLL_MASK)
w.connect('destroy', gtk.main_quit)
w.connect("key-press-event", color)
w.connect("button-press-event", color)
w.connect("scroll-event", color)
color.idx = 0
color(None, None)
w.fullscreen()
w.show()
gtk.main()