[Fisneaky]

IMO the sky is too blue, whether light or dark.

Colour leans towards indigo , but should be closer to cyan. this can be adjusted on some GPU controls.

It would be better if the colour coding of the sky could be found in game.

(maybe a look through Dogeaters chroma map files. . . .)

these possibly, though I cant find the default path:-

Cube_bott.tga
Cube_right.tga
Cube_front.tga
Cube_back.tga
Cube_top.tga
Cube_left.tga

all 8 bit uncompressed tga 256x256 px

edit...

Looks as though you cant change sky colour above 6000m

below that it's possible to do some editing of:-

HighClouds = Clouds256.tga
HighCloudsNoise = CloudsNoise.tga