i have some more examples for you, pictures and a video
colors are, red for target, blue for implied target and white for mouse over
here are the pics:
and heres the video
http://www.youtube.com/watch?v=ayGxg3RqTTo
nothing special about it, but there are some scenes where you can see the highlight thingy in action. you also see that it wont work that good on "ghost" mobs so be ready for that.
some scenes are very short so you may like to pause the video
if that is exactly what youre looking for, i'll have look when i log in, since it was years ago when i did those options, so i cant remember where i did that