Vexillology in the Frontier

What are the flags of the Frontier? Its a human tradition and not at all certain that the other races will have a similar practice. I see yazirians and humma having a similar practice. Dralasites would easily adopt the practice. I think it'd be likely that the strong maritime tradition of the ifshnit would see the evolution of a flag. Strong possibility that both the Rim and the Frontier have flags. So what's the flag of the UPF? The MSO? Planetary governments? And etc.