One of the last teams I had as Scrum Master was the green team, in the transformation where it was, the names of the teams corresponded to colors, I had already had the orange team, but I wasn't with them since the beginning. Therefore do not participate when they chose their color and formed their identity from Identity Symbols
During the Team discovery team, in addition to looking for members to know each other more, using personal maps and team canvas (through which we agreed on purpose, roles, tools, etc.), we had to choose a color for the team, the color that It was chosen was green.
As the weeks passed, different ideas were emerging first from green beer until an idea that the team had an Irish air, this is clearer in the images below
First the team designer designed cartoons of the team members and later we even had a team banner, the one we took to each Sprint review, each team member was proud to belong to the green team.