如何为同一个chartjs条设置3种颜色？

// 引入Chart.js库
const { Chart, registerables } = require('chart.js');
Chart.register(...registerables);

// 准备数据
const data = {
  labels: ['Red', 'Blue', 'Yellow'],
  datasets: [{
    label: '# of Votes',
    data: [12, 19, 3],
    backgroundColor: [
      'rgba(255, 99, 132, 0.2)',
      'rgba(54, 162, 235, 0.2)',
      'rgba(255, 206, 86, 0.2)'
    ],
    borderColor: [
      'rgba(255, 99, 132, 1)',
      'rgba(54, 162, 235, 1)',
      'rgba(255, 206, 86, 1)'
    ],
    borderWidth: 1
  }]
};

// 配置选项
const config = {
  type: 'bar',
  data: data,
  options: {
    scales: {
      y: {
        beginAtZero: true
      }
    }
  }
};

// 创建并渲染图表
const myChart = new Chart(
  document.getElementById('myChart'),
  config
);