!	 $eterna: background_colour,v 1.3 2018/06/10 08:17:43 mrg Exp $
!
! Copyright (c) 2000-2018  Matthew Green.
!
! All rights reserved.  See the HELP IRCII COPYRIGHT file for more
! information.
!
Usage: SET BACKGROUND_COLOUR [0-15]
  Set the default background colour for this display to this ANSI
  colour code.
