(This was posted on the M6 forum and on Dan's forum, might as well post it here.)
Earth Sky
To get a realistic azure colour, change the AtmColor field in Earth.cfg to
Mars Sky
Change the "AtmColor0" and "AtmHazeColor" fields in Mars.cfg so that they are as shown:
Earth Sky
To get a realistic azure colour, change the AtmColor field in Earth.cfg to
________________________AtmColor0 = 0.0 0.55 1.0
Mars Sky
Change the "AtmColor0" and "AtmHazeColor" fields in Mars.cfg so that they are as shown:
AtmColor0 = 0.823 0.658 0.501
AtmHazeColor = 0.823 0.658 0.501