other_colours

      text lines: <number>
      fold lines: <number>
      status lines: <number>
      marked text lines: <number>
      marked fold lines: <number>
      marked status lines: <number>

 This allows the user to specify his/her colour preferences for the screen.
 The numbers are IBM-PC Mode 3 colour attributes on DOS and OS/2.

 Colours are made up of a foreground colour, a background colour, a flash and
 a brightness value. Values are :-

      Black    0     Flashing  1
      Blue     1     Static    0
      Green    2
      Cyan     3
      Red      4
      Magenta  5
      Yellow   6     Extra bright    1
      White    7     Low brightness  0

 The complete colour is calculated as :-

      foreground_colour +
      background_colour * 16 +
      brightness * 8 +
      flashing * 128

 eg: bright yellow on red is 6 + (4 * 16) + (1 * 8) + (0 * 128)

 Obviously, if you only have a mono display these values will bear no
 relationship with the actual colours.

 NOTE:

 In the UNIX and other environments the colour values also change radically
 to reflect the machine capabilities.