In Code Geass: Akito the Exiled, the character Ryou wears five colored badges on his outfit.
His article on the Code Geass Wiki says nothing about this. What do these badges signify?
Here are images of the badges that I believe are clearer (taken from blogsuki.com):
So, what do we see?
Apart from the rising Sun, and maybe the 'R' could stand for Ryou, I do not really have an idea of what these symbols would mean.