What color should my sister dye her hair?

[Popstar]

My sister is interested in getting hi-lights or low lights but she can't decide what color. Here's her facebook, so can you look at her profile photo and give some suggestions? http://www.facebook.com/pinkandglitter
Thanks! And please don't list colors like purple or green!
If you say darker or lighter, say how many shades darker or lower, just make the best estimate you can, please! Thanks very much!

[Claire]

I think she should dye her hair a little lighter and then get darker highlights after.

[Cimmi]

light color