You need DPaint.
Load the file
'CIVMAP.lbm into
Dpaint and save it
elsewhere. You can
now draw your own
world using the
following color
sequence:
Light Green =
Grassland
Dark Green = Forest
Light Blue = Jungle
Medium Blue = River
Dark Blue = Oceans
Brown = Plains
Purple = Mountains
White = Artic
Yellow = Desert
Red = Hills
Grey = Tundra