I've noticed a lot of questions in the comments section, but since I can't answer those, questions would be better asked in the Discussions section.

Things noticed so far...

Time of Day Issues: I have fixed this, but am looking into a few other things before I push the update. It should now work even if you don't own any DLC.

Jungle Issues: I am looking into this, but it's hard to track down since I don't see it on my machine. I will keep searching though. There is a "blueish" decal that gets placed on the ground to help separate it from the forests. On the low end graphics settings, the trees are a bit more sparse so you can see this a little more clearly.

Unit and Building Adjustments: We have a very cool feature called a colorkey that we can use to adjust the overall look of the game world (not the User Interface). I utilized this to help tone down some of the saturation of the world before re-texturing the terrain. This helps the buildings sit better into their new environment. It is also why, should you use these textures in your own mods, they might not look the same. The color keys allow you to edit anything can edit in your imaging software of choice. There are color bars at the top of the image that will change as you edit the image. The engine can read these color bars to change the look of the game when it's running in real time. This is very well documented in the documentation for ModBuddy should you care to look into it.

You can change levels, curves, color ranges, etc... Basically anything that involves the whole screen or certain value or color ranges.