Really? That's so cool! (Unless you get colour clashes, in which case, annoying.)

Every. Single. LJer. Is unique in color and pattern, even when I had two cherryices on my friends list. Except for the two of you. I can't even figure out why; I've had pairs of names that were much more similar (see, for example, the era of two cherryices).
Huh. Very weird. dzurlady had a theory that we friended you at the same time, but joule tells me that we were more than a month apart, and had many people in between.

The only thing I can think of is - well, we're identical twins, and this is somehow marked on us on a sub-atomic level, which you have picked up on and translated into colour blend and pattern. Or something. *g*

Anyway, you're not the only one who gets us confused, online or off. It happens. (Regularly.) Don't worry about it. I will endeavour to only use my default icon, on the off-chance that will help.

And delurker also gets a knighthood, for excellence in distraction and disambiguation.
(Sweet! My plan has come to fruitition.)