resource placement

So this isn't really a huge deal, just an idea for a nice little touch that could be added. I think that if foxes (Furs), Deer, or elephants (Ivory) spawn on Tundra or Snow tiles, the little animals running around in them should get some cosmetic changes: the (typically red) foxes become Arctic...

Hi I am making a world map on World builder and a have the following question: Is there a way to randomize resource placemente in each section on the map? For example, to random place silk in East Asia but not in Europe or to random place Wheat in Europe/West Asia but Rice in East Asia? Is...