Click Image to Close?

Is there any way to tweak jQuery Colorbox so you can click in the middle of the image to close the overlay? We’re putting up some very large images which sometimes require scrolling, and the “X” close box can be difficult to get to once the overlay is open…

For example:
http://mightymega.com/2013/04/18/infographic-50-unbelievable-facts-about-earth/

Click that main image in the article to zoom in, and scroll down. See how tricky it is to close the image now? Sure you can click the black area outside of the image or hit “escape” but it would be nice if you could just click in the image itself to close.

http://wordpress.org/extend/plugins/jquery-colorbox/