如何删除Flutter融合条形图背景网格线？
使用pub.dev_flutter_charts 19.4.56 https://pub.dev/packages/syncfusion_flutter_charts
<图像网格线（灰色线）>
x1c 0d1x的数据
我的代码

return SfCartesianChart(
  title: ChartTitle(text: totalTaxString, textStyle: const TextStyle(fontWeight: FontWeight.bold)),
  primaryXAxis: CategoryAxis(
    maximumLabelWidth: MediaQuery.of(context).size.width > 480 ? MediaQuery.of(context).size.width * 0.3 : 100,
    labelStyle: const TextStyle(overflow: TextOverflow.ellipsis)
    // isVisible: false
  ),
  primaryYAxis: CategoryAxis(    
    isVisible: false
  ),
  series: <BarSeries>[
    BarSeries<ModelPioChartData, String>(
      dataSource: listPioChartData,
      pointColorMapper:(ModelPioChartData data, _) => data.color,
      xValueMapper: (ModelPioChartData data, _) => data.x,
      yValueMapper: (ModelPioChartData data, _) => data.y,
      dataLabelMapper: (ModelPioChartData data, _) {
        if(data.y.toStringAsFixed(0).length > 4) {
          return "${data.y/10000}조 원";
        } else {
          return "${data.y.toStringAsFixed(0)}억 원";
        }
        
      },

      dataLabelSettings: const DataLabelSettings(
        isVisible: true
      ),
      enableTooltip: true,
      
    ),
  ],
);

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