Has anyone used this to get grayscales for mapping in SC4? I know that it's for Skylines but couldn't it work for SC4 too? Thanks guys!
It will work in theory, but I'm not sure (from very limited testing) how well it works out in terms of scale. You may need to adjust the dimensions of the exported image in order to match the expected scale for SC4.
Bear in mind also, C:S regions tend to be on the smaller side of things. As such you may need to stitch together multiple images to make larger SC4 regions.