I have noticed something, I probably ain't the only one:
Look at the flag of the Sith Empire in SWTOR.
http://images.wikia.com/tridentrpg/images/5/53/FlagSithEmpire.png
Then look at the flag of the Galactic Empire and the Galactic Republic in the movies.
http://upload.wikimedia.org/wikipedia/commons/thumb/5/59/Flag_of_the_Galactic_Republic_(late)_and_the_Galactic_Empire_(early).svg/220px-Flag_of_the_Galactic_Republic_(late)_and_the_Galactic_Empire_(early).svg.png
See how they are almost indentical, why would the Republic use a flag that looks almost the same as their old enemies?