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static gint8 get_bgcol(gint line, guint8 type)
{

  guint32 min_d, d, color_index, x, bg_red, bg_green, bg_blue, color_r, color_g, color_b;

  GimpRGB bgcolor;

  if(!gimp_context_get_background(&bgcolor))
    return 0;

  printf("bg color is (%u, %u, %u).\n", bgcolor.r, bgcolor.g, bgcolor.b);

  min_d = 99999999; /* insanely high to make sure d is never higher. */
  color_index = 0;

  bg_red   = bgcolor.r/16777216;  /* Convert 32 bit gimp values to normal 8-bit values */
  bg_green = bgcolor.g/16777216;
  bg_blue  = bgcolor.b/16777216;

  printf("in 8-bit notation, (%u, %u, %u).\n", bg_red, bg_green, bg_blue);

  for (x = 0; x<16; x++)
  {

    color_r = vicpalette[x*3];
    color_g = vicpalette[x*3+1];
    color_b = vicpalette[x*3+2];

    d = sqrt( pow(bg_red - color_r, 2) + pow(bg_green - color_g, 2) + pow (bg_blue - color_b, 2) );

    printf("Checked color %d = %u, %u, %u.  Error is %u.\n", x, color_r, color_g, color_b, d);

    if(d < min_d)
    {
      min_d = d;
      color_index = x;
    }
  }
  printf("Closest match is %u.\n\n", color_index);
  return color_index;
}