All other windows in the game have the close button on the right side, I suggest moving this button on the tech tree to the right side as well, just so everything have the same pattern. I get myself constantly going with the mouse to right side to close the tech tree, just to remember that it’s on the left side.

In my experience so far with the game, over 400 hrs
, grain crops never suffer with drought or heat without researching this tech. Maybe it could be change to give all crops the effect, but reduced to 10/20% to keep it balanced. Also, the plant icon used is the one for beans and not grains like the tech suggests it is.
