rename plot_lines 'width' property to 'stroke'

    {"group", configure_series_fn(data, &data_group)},

    {"color", configure_color_opt(&color)},

    {"colors", configure_series_fn(data, &colors)},

    {"width", bind(&configure_measure_rel, _1, doc.dpi, doc.font_size, &line_width)},

    {"stroke", bind(&configure_measure_rel, _1, doc.dpi, doc.font_size, &line_width)},

  };

  if (auto rc = parseAll(plist, pdefs); !rc) {

  layer {

    type: lines;

    width: 8pt;

    stroke: 8pt;

    color: #ccc;

  }

}