Europa Universalis 4 Colonial Nation Capital
Does anyone know how a Colonial Nation (CN) selects its capital in EU4? I see some posts saying it is random, some saying it is the highest development province when the CN is formed, and other saying it is the first colony in the colonial region.

I am asking because when my EU4 Roma Invicta series inevitably reaches the colonization stage I want the capital of my first CN to be Novus Roma (New Rome) and depending on how the game selects the capital of a CN determines what I need to do to make sure Novus Roma is the capital.