XO avatars

[William Cohen]

I have been thinking about the little XO people that are used to show who is 
connected in the neighbor hood. The only aspect of them that can be changed is 
color. Given that the screen works in both color and black and white, it will be 
very hard to distiguish between different people in the neighborhood. It seems 
like there should be some other visual aspects to be selectable in addition to 
color. Are the current XO avatars just  place holders?  Is there any thought to 
composing the avatars from a set of components?

-Will