Size of Country Colors

Hello. I've recently returned to fencing after a rather lengthy layoff
period. Trying to catch up to some of the changes made in the past few
years. One I've noticed pertains to the fencer's name and country on jacket
or knickers. I was thinking of putting it on the knickers until I saw the
FIE thing about country colors on the knickers. Just wondering if anyone
knew the size that the emblem needs to be. And how are fencers handling the
colors and names on the rear leg, assuming any are doing so. Thanks for
any/all answers and pointers. It feel good to be back fencing, again.

--
Ken Empson
Guitar Player