IS IT JUST ME?!?!?!?!?! Voltron like, change Shiro's hair, and then TDP changes Claudia's hair! Claudia's head WILL go fully white. There's a 99,999,999,999,999,999,999,999,999.999999999999999999% + .000000000000000001 chance that her hair will go fully white. Am I wrong?
Keith gets his mark because of the clone of Shiro. Right after the clone says "I saw to it myself" during their fight in "The Black Paladins", Shiro's sword gets too close to Keith's cheek, and burns a mark into it.