I think you can do this yourself, but it may cost you credits.
If you want me to do it I can as I've just paid for the league, so if you want a new team name, logo etc... let me know in this thread..

City -
Name -
Logo - Link me or add to this post.

Helmet colour
Inner stripe -
outer stripe -

Jersey Colour
Home -
Away -

Jersey numbers
Home -
Away -