Shape markers - line graph under fill

I needed to use a line graph with a complete fill under the line.

I found I needed to allow for the special case of chm=B defined here:
http://code.google.com/apis/chart/colors.html#fill_area_marker

To do so, I adjusted the code in chart.module

    // Shape markers  
    case 'chm':
      if ($value && $value['#type'] !== 'B'){
        $markers = array();
        foreach($value AS $marker){
          $markers[] = implode(',', $marker);
        }
        $data[$attr] = implode('|', $markers);
      }
      else {
        $data[$attr] = implode(',', $value);
      }
      break;

I could then make an under line fill using:

    '#shape_markers' => chart_shape_marker(0,0,'B',0,'76A4FB')

in the chart definition array.

hth,

DT