Red vs. Green

[lily_solstar at hotmail.com]

No: HPFGUIDX 30452

I've noticed some interesting color wars throughout the books, 
particularly with the color red verses the color green.  I can think 
of three examples right off the top of my head.

The first, the obvious one, is Gryffendor verses Slytherin

The second is in GoF, Ireland verses Bulgaria (Bulgaria actually 
might have been orange, but I'm pretty sure it was red)

The third is the red of Voldemort's eyes verses the green of Harry's 
eyes.  JKR herself said that eyes were important.

I wonder if there is any significance to any of this, or if it's 
coincidence.  Can anyone think of any other examples?

--Lily Solstar