Terrain is a adjustable feature that includes the following settings:
Size and Theme settings:

Map width and height: This setting makes the map height and width adjustable.

Map theme: Set this to a number and see the terrain change color based on terrain height.
<note warning>Don't mix colors that don't match, such as green and red.</note>

Fractal controls: These settings change the map terrain generation.

Ridge settings: These settings make terrain ridges in the terrain.

Void settings: These settings make void in the map.

Landing Pad: Creates a pad for the player to land on.