PINK color meaning the player has received a warning.WHITE color meaning lack of violations.
The status of a player’s account will be indicated by the color of their nickname: From now on, players acting disrespectfully toward teammates by attacking them, being inactive in battle, or fleeing a battle will get a foul conduct warning first and will be banned from certain types of battles (except Co-op and Clan Battles) in case of repeated violations. In the upcoming Update 0.7.4, we’re taking the efficiency of our system used to counter unsportsmanlike conduct and unfair play to a whole new level. Unsportsmanlike Conduct Prevention System