Silly.. If you watch The Original Series
That “Boomerang” logo was just the Enterprise’s geometric symbol
If you ever saw a crew member from another ship in star fleet they would have a different logo for each ship on their chest
They were mimicking US World War II carriers that use the geometric logo on the tail of their aircraft
It’s the same with the Star Trek famoust color jerseys the crew wore red blue gold
The copying what’s done on board US carriers for the flight deck crews
That’s true, there were different insignia as well as uniform styles in the original series. Security personnel wore red so that the blood stains were less noticeable, whereas the space babes had lower cut blouses, black stockings, and mini skirts.