Grouped axis labels

import WestCoastCharts from 'west-coast-charts'

const options = {
  chart: {
    height: 380,
    fontFamily: "Inter, Geist, \"IBM Plex Sans\", system-ui, sans-serif",
    type: "bar",
    toolbar: {
      show: false
    }
  },
  series: [
    {
      name: "Orders",
      data: [203, 265, 314, 232, 509, 211, 504]
    }
  ],
  xaxis: {
    categories: ["Oct", "Nov", "Dec", "Jan", "Feb", "Mar", "Apr"],
    group: {
      style: {
        fontSize: "12px",
        fontWeight: 600
      },
      groups: [
        {
          title: "2025",
          cols: 3
        },
        {
          title: "2026",
          cols: 4
        }
      ]
    }
  },
  plotOptions: {
    bar: {
      columnWidth: "55%",
      borderRadius: 3
    }
  },
  dataLabels: {
    enabled: false
  },
  title: {
    text: "Orders across the year boundary"
  },
  theme: {
    mode: "light",
    preset: "coastal"
  }
}

const chart = new WestCoastCharts(document.querySelector('#chart'), options)
await chart.render()