如何在canvas js中更改条形图的颜色？

var chart = new CanvasJS.Chart("chartContainer", {
  // 图表配置
  data: [{
    type: "bar",
    dataPoints: [
      { label: "A", y: 10, color: "red" },
      { label: "B", y: 15, color: "green" },
      { label: "C", y: 7, color: "blue" },
      // 其他数据点...
    ]
  }]
});

var chart = new CanvasJS.Chart("chartContainer", {
  // 图表配置
  data: [{
    type: "bar",
    color: "orange", // 设置整个数据系列的颜色
    dataPoints: [
      { label: "A", y: 10 },
      { label: "B", y: 15 },
      { label: "C", y: 7 },
      // 其他数据点...
    ]
  }]
});