Works best with gamma setting around 2.2, depending on your display.
Version 3.0
I've added several new textures of fields (including normal maps) and further edited some existing ones, overall the map will be populated with more wheat fields. Some of the green textures has been darkened or brightened to add more variety and make the map look closer to the satellite picture base texture, that has more varying shades of green.
In case you prefer brighter or darker surface, increase surface gamma in "Mods\terrains\GermanyColdWar\shadingOptions.lua" (currently 0.78 / original value 0.73). Same can be done for trees and objects (buildings)