I would love to see more gate options introduced to the game that is simply the default one we have in other colors/themes. If we have an additional black, green, and red gate, they would be great for different exhibits. The player could use them for different themed parks be it Jurassic World, Park, DFW, Biosyn, or Malta. They could be used to correspond to the prominent diet in the enclosure such as herbivores, carnivores, or piscivores. They could also be used to highlight the animal's danger level such as green for docile, black for neutral, or red for dangerous.
A little more color beyond the default blue I think would be great for variety.
