#autoload

local expl

if (( ! $+_color_cache )); then
  local file

  # Cache of color names doesn't exist yet, create it.

  file=( /usr/{lib,{{X11R6,openwin},local{,/X11{,R6}}}/lib}/X11/rgb.txt(N) )

  if (( $#file )); then
    _color_cache=( "${(@)${(@f)$(< $file[1])}[2,-1]##*		}" )
  else

    # Stupid default value.

    _color_cache=(white black gray red blue green)
  fi
fi

_description expl 'color specification'
compadd "$@" "$expl[@]" -M 'm:{a-z}={A-Z} m:-=\  r:|[ A-Z0-9]=* r:|=*' - \
        "$_color_cache[@]"