@w_jkoopman - any way you could help me with a custom flag? Once I understand the process...

Yes, it worked now, thank you!

Have you also edited the *.cs file in the source map? You need to change the names in the file itself to the name you've given the png files, otherwise I believe it won't work.

Ok, ive done the process, but the game still not recognizing. It has recognized once but it does not appears anymore....

I used the source code on this: Danish flag Then just edit the png's and replace all the names of the png's and the file in the source map, and place them all in the local mods folder (usually C:\Users\username\AppData\Local\Colossal Order\Cities_Skylines\Addons\Mods)

And if you could tell me how have you done it, i would be gratefull. Im trying to make a custom flag, but dont know how...

How did you dumped the mesh?

Looks just like the Dominican flag