Alright, should be fixed in the next build. We did not have that feature yet (extra small logos for the nick names or city names). But now we have it
For example:
team = Miami Dolphins
This logo file would be used: /nicknames/dolphins_6666FF_000066.png
This small logo file would be used: /nicknames/dolphins_small_whatever note.png
Or this small logo file: /nicknames/dolphins_small.png
Or this one: /cities/atlanta_small.png