自定义颜色与样式

通过 Chart.js 提供的丰富配置，可以轻松自定义图表的颜色和样式。你可以设置数据集的背景色、边框色、线条样式，甚至调整图例和坐标轴的字体颜色和大小，打造符合需求的个性化图表。

(function () {
  const ctx = document.getElementById("customStyleChart").getContext("2d");
  const customStyleChart = new Chart(ctx, {
    type: "bar",
    data: {
      labels: ["红", "蓝", "黄", "绿", "紫", "橙"],
      datasets: [
        {
          label: "自定义样式数据",
          data: [10, 20, 15, 25, 18, 30],
          backgroundColor: [
            "rgba(255, 99, 132, 0.8)",
            "rgba(54, 162, 235, 0.8)",
            "rgba(255, 206, 86, 0.8)",
            "rgba(75, 192, 192, 0.8)",
            "rgba(153, 102, 255, 0.8)",
            "rgba(255, 159, 64, 0.8)",
          ],
          borderColor: [
            "rgba(255, 99, 132, 1)",
            "rgba(54, 162, 235, 1)",
            "rgba(255, 206, 86, 1)",
            "rgba(75, 192, 192, 1)",
            "rgba(153, 102, 255, 1)",
            "rgba(255, 159, 64, 1)",
          ],
          borderWidth: 2,
        },
      ],
    },
    options: {
      responsive: true,
      plugins: {
        legend: {
          display: true,
          labels: {
            color: "#333",
            font: {
              size: 14,
              weight: "bold",
            },
          },
        },
        tooltip: {
          enabled: true,
          backgroundColor: "rgba(0,0,0,0.7)",
          titleFont: { size: 16 },
          bodyFont: { size: 14 },
        },
      },
      scales: {
        x: {
          ticks: { color: "#555", font: { size: 12 } },
          grid: { color: "#eee" },
        },
        y: {
          ticks: { color: "#555", font: { size: 12 } },
          grid: { color: "#eee" },
        },
      },
    },
  });
})();

示例无法以 iframe 加载（请检查路径或将 demo 放到 public/）。