When placing an agricultural tower, count how many squares are plantable

[sparr]

When you are placing a miner, the info box on the right tells you how many resources are in the coverage zone.

It would be nice if something similar was done for placing an Agricultural Tower. On a small patch of plantable soil, moving the tower one tile in the right direction might *double* the number of green spaces, depending on the specific arrangement of terrain tiles. Double is easy to spot, but the difference between 16 and 17 is a lot more subtle. I'd rather just read a number than have to count repeatedly to make sure I made the right choice.