Assuming you have a short-hair cat, she should develop more and thicker fur as she ages. Although, a white-faced cat will always have a little pink on their head, especially around the temples and forehead. It has also been noticed that a white cat, will often develop other colors after they age a bit, if they are not pure white, but contain other colors as well. My Snow Tiger's lynx points are just now getting a little darker, this contrasts with his icy-white coat but they are not changing positions on his body. Where as Snow cat is continuing to develop more brown on his color points, especially on his back. Also, his mask and legs are pale brown which is a recent development as both these areas were white at birth.

..............wayne