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Spline area

Two overlapping smooth areas.

Chart type
Area area
Tier
Free Core
Collection
Area
Render
Live, site theme
View .md Agent setup
LIVE/area/area-spline2 of 8 in Area

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Configuration

Raw Standalone 
const options = {
  chart: {
    height: 380,
    fontFamily: "Inter, Geist, \"IBM Plex Sans\", system-ui, sans-serif",
    type: "area",
    toolbar: {
      show: false
    }
  },
  series: [
    {
      name: "Web",
      data: [40, 43, 42, 40, 42, 43, 39, 43, 42, 40, 36, 40]
    },
    {
      name: "App",
      data: [24, 21, 19, 22, 27, 30, 30, 31, 32, 33, 33, 38]
    }
  ],
  xaxis: {
    categories: ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"]
  },
  dataLabels: {
    enabled: false
  },
  stroke: {
    curve: "smooth",
    width: 2
  },
  title: {
    text: "Sessions by platform (k)"
  },
  theme: {
    mode: "light",
    preset: "coastal"
  }
}

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