Add config and render a image in center of chart for Highcharts.com (like as watermark) #Demo http://hientrung.github.io/highcharts-watermark/ #Config Add a config name 'watermark' to option when create chart or use Highcharts.setOptions to set watermark is default
Default:
watermark: {
url: '',
width: 200, //width of image
height: 200, //height of image
top: false, //set image to top other elements
opacity: 1 //set opacity of image
}
If config was setup default, it's can disable in charts by set url to empty string