in the match setup screen there a small box that when you click it a green bar appears clock 2x and it turns orange i think this is a difficulty bar
but obviously a new player. thanx
Not such a dumb question as (as far as I'm aware) neither the tutorial nor the rules etc bother to explain this.
However, the Green icon indicates the Easy AI and the Orange icon indicates the medium AI as is confirmed on the Ascension website here:
There was discussion of an additional Hard AI but it isn't clear whether that went anywhere.