Board Thread:Off Topic/@comment-27144409-20170705210718/@comment-26397825-20170914030748

The most "themeing" the team names have done is match the colour of the team to the colour of the leader. RWBY is red, like Ruby. JNPR bushes comes in a yellow variant, like Jaune. CRDL is a shade of red, which Cardin's name comes from. ABRN is a shade of red-brown, like Arslan's last name, Altan. NDGO is a shade of blue-purple, like Nebula's last name.

So long as the team name matches the leader's colour somewhat, you're following the only real themeing team names have been given in the show.