Test that the colors, audio and restart works. Starts at 10 seconds, changes colors at 5 and restarts at -5.
FULL SCREEN
Make the text bigger to fill the whole screen. This is CMD+ or CTRL+ in most browsers - or via the menu if you're using IE.
RESTART
Hitting the spacebar will also restart the timer
(and make all of this text go away).
FEATURES
Bell: Rings a bell and turns the screen red (unless you specify other colours) when time is up. Transitions: Change colors at
specified times. Restart: Restart specified times.