country_bounds xxx NA3DESCAfrica center-line #0000ff 2.0 NA3DESCAntarctic center-line #ff0000 2.0 NA3DESCAustralia center-line #00ff00 2.0 NA3DESCEurope center-line #ffff00 2.0 NA3DESCNorth America center-line #ff00ff 2.0 NA3DESCAsia center-line #CC0000 2.0