Sky Box

Is a cubemap projection of a skyline used to enhance the background of the map.

Example
Example cube cross before assembling to dds cubemap format	Ingame Result

Specification

The relevant sections of the mapinfo.lua file that effect the colour of the ground are in the atmosphere subtable

local mapinfo = {
   ...
   atmosphere = {
      ...
      skyBox = "",
      ...
   },
   ...
}

File Location	./maps/
File Format	DXT1 compressed dds cubemap
Colour Depth	4bpp
Channels	RGB
Resolution	Powers of two, recommended higher than 512x512