如何使用chart.js版本2.8.0 (空间折线图)更改每个图例标签的字体颜色？

var ctx = document.getElementById('myChart').getContext('2d');
var myChart = new Chart(ctx, {
    type: 'line',
    data: {
        labels: ['January', 'February', 'March', 'April', 'May', 'June', 'July'],
        datasets: [{
            label: 'My Dataset',
            data: [10, 20, 30, 40, 50, 60, 70],
            backgroundColor: 'rgba(0, 0, 0, 0)',
            borderColor: 'rgba(255, 0, 0, 1)',
            borderWidth: 1
        }]
    },
    options: {
        legend: {
            labels: {
                fontColor: 'red' // 设置图例标签的字体颜色为红色
            }
        }
    }
});