if your gonna add an Austrian fascist flag, you should use the flag of the Vaterländische Front, not the swastika

In vanilla, the Front is represented as the ruling Non-Aligned party and thus should use the historical Austrian flag.

Fascist Austria represents the Nazi Party of Austria.

If I could make any suggestion it would be that instead of the Joseon flag for neutral Korea, you use the Korean Empire one. Not an expert on the matter, but it does appear more modern (tried to implement myself once, but somehow messed up other flags as a result).

See wikipedia: "List of Korean flags" - I would say the top most one for Flag of the Korean Empire would be best (second from bottom also alright).

(off-topic: I really like OP's suggestion #3 for the Franco-British Union's flag)

@CSRZ a little cosmetic advice. The flag of the communist China does not look bad, but still the sickle itself, as for me, is more rounded on the original flag of the CPC.

what about the flag of Fascist Haiti? it would have been the flag of the Duvalier dynasty that ran from 1957-1986. it would make sense as that era was a dictatorship

Additional suggestion: Change flag of neutral Raj for when it is not a British puppet to democratic India flag or some other flag (I would suggest likewise removing the Union jack flags for any British colonies no longer in a colonial or dominion relationship under the UK).

Austrias Flag is kind of a hard topic. The Vaterländische Front made the Cross Potent Flag https://en.wikipedia.org/wiki/List_of_Austrian_flags#/media/File:Flag_of_the_Fatherland_Front_of_Austria.svg equal to the state flag in 1936. It therefore serves the same purpose as the Swastika Flag in Nazi Germany between 1933 and 1935, when it was also equal to the black-white-red flag (black-red-gold was quickly removed after the Nazis came to power).
Austria's mechanics are pretty lacking ingame, so the somewhat chaotic politcal processes aren't reflected. Seyß-Inquardt only ruled for 3 days, and the only purpose of the "Deutschsozialen Austria" (it's real name was "NSDAP-Hitlerbewegung") was to merge with the German Reich, an independent Austria wasn't an option.
So even though the Austrian NSDAP (successor of the DNSAP) used the same symbolism as its German counter part, there is no scenario, where an independent, fascist Austrian state would use the swastika as state flag. It's already quite a niche case, but I think it would make more sense.
FYI: the current state flag of Germany is this one: https://en.wikipedia.org/wiki/List_of_German_flags#/media/File:Flag_of_Germany_(state).svg
But its private use is prohibited.

You make a great work in your mod and i continue to use it, but my point is the flag of phalangist and spanish empire is simply ugly with this black, historical or not, it could be better with yellow

In my opinion the fascist flags should be more a little more generic. It feels odd to have a swastika on the flag of countries that are puppets of Italy, Spain, Japan, so on when the Swastika would only fit for German puppets or Nazi countries. (I puppeted Russia and Canada, instantly created a cosmetic tag to have them with more appropriate flags)

Flag of Jinbei: https://upload.wikimedia.org/wikipedia/commons/f/f7/Flag_of_Jinbei.svg

It was the flag of North Shanxi Autonomous Government, Japanese puppet of Shanxi, my suggestion for Facist Shanxi-flag.

Some suggestions:

1) Communist Britain could use more Union Jack on it (right now it looks like a Soviet Union knock-off which is not bad in itself but doesn't go well with the anti-Moscow path). The Communist Party of Great Britain often had the Union Jack on its rallies. Suggestion: {LINK ELIMINAT}shorturl.at/coCT3 - British, communist, and simple.

2) Communist Portugal is very nonsensical. Yellow and green have no place whatsoever in Portuguese vexillological history. Suggestion: https://external-preview.redd.it/VCbvv59NFEuaeSCribZStLoD0GQeU7fZu5uHCPg9AC0.png?width=1024&auto=webp&s=b3a47b7da95f36169e0e6cdfe5d82729b74f0101 - uses only existing national colors.

3) Franco-British Union is a pain in the ass to design for. It is easy for me to say that the current flags break heraldry-y rules like avoiding putting colors on colors or metals on metals; it is also easy to say that putting a flag above another is just weird (no historical examples pop up). The hard thing is proposing a better alternative.

Both nations would keep their flags, using a common one for diplomatic purposes. To avoid the natural weirdness of juxtapositions, this might be good https://i.imgur.com/IFwgVen.png - it is British, it reminds of France, and it is not your conventional "national" flag.

4) Communist Turkey - https://i.redd.it/emx0t1nogc101.jpg - it is Turkish, communist, and unique.

5) Portugal-Spain union - https://www.alternatehistory.com/forum/attachments/flag-of-iberia-png.111694/ - just looks gorgeous! Lots more color too.

1) I oppose to the idea of British communists using the Union Jack as the flag of theirs. Most of the independent communist countries always used red color in their flags. There are actually photos from the 20's and 30's where British communists used the same flag as the Soviet Union. The current design is actually inspired by the PRC flag - Chinese communists also used the Soviet flag knock-off for a while and later they adopted the flag with 5-stars. Current design for the communist British flag shows the original custom-made emblem with three golden stars underneath representing England, Scotland and Wales.

2) It's the same case for Portugal. Inspired by the Communist China example (where country flag retained the same color scheme as party flag) which is historical I designed the communist flag for Portugal from scratch based on their party emblem: https://en.wikipedia.org/wiki/File:20th_Century_Portugese_Communist_Party_patch.svg

Historically there are two cases of communist flags:
1. International focused - ex. Soviet Union, Communist China, various flags from the 1918-1921 period, many party flags. These are the ones that are at least 90% red. These governments were focused on spreading the revolution outwards.
2. National focused - ex. Communist Poland, Communist Hungary, Communist Romania etc. These are the ones that retain "tradiional" look. These countries were often a puppets of "case 1." countries, not really focused on spreading the revolution and sewering all ties with the past, but rather making their governments seem "legal" succesors of the previous countries they repleaced in the eyes of the world.

All realistic communist flags that focus on internationality in my opinion should be at least 50%-60% red with visible communist emblems/symbols replacing the traditional flag colors and traditional CoA's.

3) no way it would happen - realistic flag would look completely different and not include either of the previous flags. I believe there would be no mash-ups. Possibly we would get a flag similar to the European Union or something else entirely.

4) the same case as 1) and 2) Why would communists retain anything tied to the previous Ottoman based design?

5) I actually really like the current ESU_POR flag. Iberian unions always mashed up their CoA's and the CoA on the current design is based on the historical design:
https://en.wikipedia.org/wiki/File:Royal_Coat_of_Arms_of_Spain_(1580-1668).svg
Why would the flag show two separate CoA's?

1) Fair points, but if you checked the photos from the 1920s and 1930s, you will see the Communist Party of Great Britain actually had Union Jacks in their rallies (besides the ever-popular Soviet flag).

You mention a custom-made emblem that is impossible to see well in-game. Can you link to a full version?

2) Wait a minute, you based the Portuguese communist flag on a briefly-used campaign patch from the 1980s? Ha, I knew there was something very wrong with that flag!

Yellow & green makes no sense in a 1930s Portuguese flag. Whatsoever. My other four suggestions were just a matter of subjective taste but this one is the only one truly alien. I hope you reconsider it. =)

Your divide in how communist flags are made is odd. For example: Communist (i.e. Maoist) China did not want to spread the revolution "outwards"; the vast majority of those 1918-1921 communist flags were Russian *puppets* or European ephemeral post-war revolts copying the Russian design; Communist Cuba/Yemen etc were not a puppet and 100% used the old national elements; Communist Vietnam was also no puppet but discarded all previous national elements instead etc.

I concur there is a historical trend in this but it is no sharp divide. Don't feel shackled by it.

3) >realistic flag would look completely different and not include either of the previous flags.

Then why is the current flag a mash-up? I agree it would look something distinct. The issue is working out what it would be.

4) O.o Because Turkish communists (and leftist Kemalists) actually used the crescent flag... It was not an "Ottoman symbol" (geez, Ataturk himself used the same flag) but a Turkish symbol that crosses the entire ideological spectrum.

5) I also like the design, I just prefer a version with less white on it.

The flag could use separate coats of arms because it would not exactly be a dynastic union like in the 17th century, right? Well-established nation-states and all that.

The merged Iberian Federalist flag is the classic one though, love it.

2) all right... I didn't know the emblem was from the 80's. I will work on it then.