问如何在chart.js图表中的线条下方添加阴影颜色？

EN

var myChart = new Chart("lineChart", {
      type: 'line',
      data: {
        labels: ["Red", "Blue", "Yellow", "Green", "Purple", "Orange"],
        datasets: [{
          backgroundColor: "#F72585",
          data: [12, 19, 3, 5, 13, 3],
          fill: false,
          // borderDash: [],
          borderOffset: 0.0,
          borderJoinStyle: 'miter',
          borderBackgroundColor: '#F72585',
          pointBorderColor: '#F72585',
          // pointBorderWidth: 1,
          pointHoverRadius:5,
          pointHoverBackgroundColor: '#F72585',
          pointHoverBorderColor: '#F72585',
          // pointHoverBorderWidth: 2,
          // pointRadius: 1,
          // pointHitRadius: 10,
          tension: 0,
          borderColor: "#F72585",
          
          pointBackgroundColor: "#F72585",
          borderWidth: 1
        }
        ]
      },
      options: {
        scales: {
          yAxes: [{
            scaleLabel: {
              display: true,
              labelString: 'Total Price'
            }
          }],
          xAxes: [{
            scaleLabel: {
              display: true,
              labelString: 'Product Category'
            }
          }]
        },
        plugins: {
          filler: {
            propagate: true
          }
        },
        legend: {
          display: false,
        },
        tooltips: {
          callbacks: {
            label: function (tooltipItem) {
              return tooltipItem.xLabel;
            },
            title: function(tooltipItem) {
              return 'Total Price  '+tooltipItem[0].yLabel;
            }
          },
          position: 'nearest',
          intersect: false,
          yPadding: 10,
          xPadding: 10,
          caretSize: 8,
          titleFontColor: '#1A202C',
          backgroundColor: '#FFFFFF',
          bodyFontColor: 'Black',
        }
      }
    });