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I am using chart.js to make a bar chart, and I hope to modify the color of a certain data bar. Does anyone know how to do it?
My code is as follows

function drawChart(chartid,datalist,label){
var ctx = document.getElementById(chartid).getContext("2d");
var myChart = new Chart(ctx, {
    type: 'bar',
    data: {
        labels: label,
        datasets: [{
            label:'訪問(wèn)次數(shù)',
            data: datalist,
            backgroundColor: [
                'rgba(54, 162, 235, 0.5)'
            ],
        }]
    },
    options
});    
}

For example, if I want to modify the color of the first data, how should I write it in js? Thank you all.