没有现成的API选项，但您可以轻松扩展Highcahrts来实现这一点。下面是示例wrap：

(function(H) {
  H.wrap(H.seriesTypes.solidgauge.prototype, 'drawPoints', function(p) {
    let ret = p.apply(this, Array.prototype.slice.call(arguments, 1));
    let series = this;
    if (series.options.ignoreStops) {
      series.points.forEach(point => {
        if (point.graphic) {
          var color = series.options.fillColor;
          if (color !== 'none') {
            point.graphic.css({
              fill: color
            });
          }
        }
      })
    }
    return ret;
  });
})(Highcharts);

将属性包含到系列配置中并定义颜色：

series: [{
    ignoreStops: true,
    fillColor: 'grey',
    ...
}]

Demo：https://jsfiddle.net/BlackLabel/uxL7zqtc/

关于扩展Highcahrts的更多信息：https://www.highcharts.com/docs/extending-highcharts/extending-highcharts