Chart.EmptyPointStyle

Defines the empty point style.

Sample configuration:

var emptyPontStyle = {
     marker: {
          type: 'cross',
          fillStyle: 'red',
          strokeStyle: 'red',
          lineWidth: 4,
          size : 10
      },
      fillStyle: '#cccccc',
      strokeStyle: 'red',
      lineWidth: 2
}