Hey, I make this discussion to permit users of this mod who want to discuss about the flags you're using, I saw that some people want to change some flags.
Yes, I'mg going to talk about my suggestions (I know you don't want people to create discussions about that), but I want to discuss with other people about it, and permit people to tell their ideas, and interested people to react quickly and easly.

OK. I'm french and I love that you have make some regions of France relesable (even if they aren't all). But some flags could be better in my opinion:

-Brittany's fascist flag:
I think that the SS symbol is pretty inaccurate. A version with a celtic cross or something like that would be really better.
I've made one: https://imagizer.imageshack.com/v2/576x384q90/922/i6jPdU.png

-Normandy's fascist flag:
This nazi flag look really weird in my opinion! XD
I found a better flag hier, with a nordic cross:
http://markodehaeck.free.fr/FILLES/FR/FR%20r%20NORMANDIE%20proj.png

-Île-de-France's neutral flag:
The historical flag would be better isn't it? It looks monarchist!
https://upload.wikimedia.org/wikipedia/commons/thumb/7/78/Flag_of_%C3%8Ele-de-France.svg/360px-Flag_of_%C3%8Ele-de-France.svg.png

-Alsace's neutral flag:
I suggest you the historical flag, called Rot un Wiss. The flag you're actually using was the old administrative flag:
https://upload.wikimedia.org/wikipedia/commons/thumb/1/1a/Flag_of_Alsace_%28historical%29.svg/1024px-Flag_of_Alsace_%28historical%29.svg.png

Finally I really like the Occitanian flags, but it may be better to inverse democratic and neutral flags, the neutral flag is actually the flag who's use in Occitania, so it would be more accurate i think.

Hope this will help, and sorry for my bad english! ^^