Originally Posted by Moogs
Except that I pulled it from the OS X Dictionary. It's the British spelling that is Grey. You being American I presume you thought it was the other way around?
Unlike color/colour, and similar differences, "grey" is actually common on both sides of the Atlantic. (The AppleNova posting guidelines, for example, use "grey.") It's just the fact that "gray" is not
used outside of the US* that makes everyone think "grey" is The British Spelling. Many US style guides prefer "grey." /pedant
*) Except, of course, in names.**
**) I may be biased, here.