highcharts 文字提示有阴影轮廓线

highcharts 文字提示有阴影轮廓线?

• 解决:

$("tspan.highcharts-text-outline").css("fill","none");
$("tspan.highcharts-text-outline").css("stroke","none");

• 解决2:

style:{ textOutline:"none" }

待定尝试!!!!