您可以将plotBands与图样填满搭配使用。例如：

xAxis: {
        ...,
        plotBands: [{
            from: -10,
            to: 0,
            color: {
                pattern: {
                    path: {
                        d: 'M 0 0 L 10 10 M 9 -1 L 11 1 M -1 9 L 1 11',
                        strokeWidth: 3
                    },
                    width: 10,
                    height: 10,
                    opacity: 0.4
                }
            }
        }]
    }

现场演示：http://jsfiddle.net/BlackLabel/Lunqzkgb/
API引用：https://api.highcharts.com/highcharts/xAxis.plotBands
文件：https://www.highcharts.com/docs/chart-design-and-style/pattern-fills