Currently when you end your turn, each forest that isn't "mature" (has the full set of 4 trees on it) either has a chance of spawning a disease OR of growing a new tree.
Once it's a full mature forest, it won't spawn disease, and you have to weigh up if you want to cut down a tree to get more money, but take a chance that disease may spawn from the empty spot.
You have the option to mirror X, but not mirror Y. This is important if you're using a 2d plane reference or prefer doing basic block outs in the 2d view.
This could be to do with the way Unity handles Windows HiDPI settings. You may have noticed that if your windows are set to 125% that things (like the built in colour picker) are offset in Unity.It's fixed if you set your window resotion to 100%.
Display Settings > Scale & Layout > 100%
By default on some screens, this is set to 125% which has caused issues for us in the past.
