Hi, today I finally found the solution and was able to develop the first standards.
Here you can see the battle standard from the Kingdom of Epirus:

Spoiler Alert, click show to read: 


In the coming days I will add the other standards to the mod.
And I'm waiting for the latest version of the Veggiemod, which I would also like to install. Their developer, Robbe, wrote to me today that he is developing it further. Greets Mag