Changing the Contrast on a MacBook

While I was playing around with the Keyboard Shortcuts for the previous post, I noticed that there’s a shortcut for adjusting the contrast on my MacBook. I’ve been looking for a way to do this for ages, and it turns out that it’s possible to do this with a shortcut, albeit, not a very obvious one:

To increase the contrast use: Ctrl-Alt-Command-. (that’s a full stop)
To decrease the contrast use: Ctrl-Alt-Command-, (and that’s a comma)

I’ve changed them to Ctrl-Alt-PgUp and Ctrl-Alt-PgDn on my Mac – it’s so much easier to remember.