I find it equal measures annoying and hilarious when people characterize Keith as a honorable fighter. Like, no. He fights dirty, you guys remember when he took that king hostage in like season 1 right?
Also the notion of honorable fighting, especially in a close combat situation is so stupid to me, the point of a fight is to get out alive and as unharmed as possible. There is no honor in that. It’s messy and fast and holds no punches.
He probably bites and scratches, pulls hair and goes for the jugular if it will keep him alive. He’s not some fictional knight, he’s a desperate kid.
I'm thinking about keith and how he grew up as a mixed kid but didnt know he was mixed. But there has to be Some things he did that was more galra
So like. As he grew up his hair got a bit of a purple twinge to it (not super noticeable, but definitely there). He gets very slight fangs. I think purring/growling is so fun in concept (but before voltron the last time he purred was probably around shiro. If not that than his dad. Keith growling is more common)
Also i feel like his dad would have taught him some galra shit he learned from krolia and when keith went to school everyone was so confused about some of this little boys interactions
Anyways voltron time now. Pidge and hunk are like "guys. I swear i heard keith purr. This is crazy" and lance is like "yeah? He growls too. This isnt news." Bc he pays so much attention to his rival 24/7
And when keith joins the blade he sees them do the some of the same shit that he did as a little kid and hes like "oh. It was galra traditions. Thats cool"
I like to think that as Galran's genetics get diluted, the animal they correspond with just gets smaller. Like, since Keith is only half-galra, he has behaviors similar to a bobcat while Krolia and Kolivan have big cat traits.
Like, bobcats are awesome at climbing so Keith is always on top of things he shouldn't be on top of. Also, they don't roar, they scream/yowl, and hiss. AND, unlike big cats, bobcats can purr! Keith has definitely been on a mission with the blades where he gets frustrated and just...yowls. And it makes so much sense for him to hiss when Lance starts getting on his nerves.
His galran traits freak out the paladins/alteans a bit (save for Shiro, he's seen worse) but the blades think they're adorable. Bc, imagine you're Kolivan (completely galran/big cat traits) and there's this scrawny new kid who hisses when he gets pissed.