Chart.js chartjs，如何设置每个数据的标签？

我正在使用chartjs制作一个图表，但我想为每个日期添加一个标题

我如何放置标签数组，它如何具有日期和背景颜色

const ctx2 = document.getElementById("chart-experiment-duration").getContext("2d");
          var taskQuantity = new Chart(ctx2, {
            type: 'boxplot',
            data:   {
                        labels: ["{{ experiment_duration[0]["x0"] }}","{{ experiment_duration[1]["x0"] }}"],
                        datasets:[{
                            label: "{{ experiment_duration[0]["x0"] }}",
                            data: [{{ experiment_duration[0]["y"] }},{{ experiment_duration[1]["y"] }}],
                            backgroundColor: ["rgba(126,87,194)","rgb(255, 160, 122)"],
                            borderColor: ["rgba(126,87,194)","rgb(255, 160, 122)"],
                            borderWidth: 2,
                            hoverBackgroundColor: ["rgba(126,87,194)","rgb(255, 160, 122)"],
                            hoverBorderColor: ["rgba(126,87,194)","rgb(255, 160, 122)"]
                        }
                       ]
                    },
            options: {
                scales: {
                    yAxes: [{
                        ticks: {
                            beginAtZero: true

                        }
                    }]
                }
            }
        });