I like this new feature, but would it be possible to show more than 1 adjacency? My current gameplay is with Ashoka, who gives every building a +1 happiness adjacency for improvements. Placing science or production buildings now randomly show either a happy face or a science/production icon from resources.
The same will probably happen (but not tested) with a Manigramam (Chola unique building), which gets a happy adjacency from a gold building and gold adjacency from a quarter. So both from a quarter with a gold building in it.
This feature would be most useful for me when I get more than one yield type as adjacency bonus, so I can quickly see which tiles gives which yield(s).
Example below: the Iron on the right shows a happy adjacency to one tile and a science to another, while actually giving both to both tiles:
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