Converting UIColor to CGColor in swift

Oddly enough, as Swift has evolved to 3.0 the answer has evolved as well. I ran across this while converting some Objective C code to Swift. I hope this helps someone! :-) Here is what it is today:

context.setStrokeColor(UIColor.lightGray.cgColor)

And it's funny, this "light gray" answer is actually helping me debug some code too! Thank iou!

// Original answer.
var newColor = UIColor.lightGrayColor().CGColor

// Swift 3 version
var newColor = UIColor.lightGray.cgColor