[Shiro was not one to shurk duties... even if they were ones randomly assigned by say... some beings that he had never seen before or a robotic lion...]

Yeah, I'd imagine, but it's really just what the sand is made out of that makes the color different.

[He's a nerd, Keith. Sorry.

But as Keith leaned over, he definitely caught a glimpse of that ring as it swung out from inside his shirt]

That's a quite a ring.