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Area charts add a filled region beneath the line. The fill communicates magnitude and cumulative volume, making area charts especially effective for stacked part-to-whole breakdowns over time.

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Variants

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Stacked

Each series is stacked on top of the previous one. The top edge shows the cumulative total; each filled band shows the individual contribution. Use this for part-to-whole breakdowns over time (e.g. revenue by product category over months).

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Percentage stacked (Stack %)

Each series is normalized to 100% at every X-axis value, showing proportional contribution over time. Use when relative share matters more than absolute volume.

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Overlaid

All series share the same baseline. Use only when series are clearly separated in value and you want to compare trajectories rather than totals — with many series, fills will occlude each other.

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Stacking

Set stacking behavior in the Color & stacking section of the Style tab. The Stack, Stack %, and Overlay options are the relevant modes for area charts. See Color & stacking for palette options and stacked segment sorting.

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Axis behavior

Area charts use a temporal X axis for time dimensions — continuous and time-aware. For non-time fields, the axis is ordinal.