Charts A

Funnel

Stages with a layered halo and the conversion between columns.

data-u="funnel"Family A

Example

Funnel chart

Stages with a layered halo and conversion pills, smooth curves or sharp cuts, and tiles with each column's number.

<article class="u-chart-card">
  <div class="u-chart-panel">
    <div data-u="funnel" data-u-props='{
      "label": "Sign-up",
      "curve": true,
      "stages": [
        {"label": "Visited"},
        {"label": "Created account"},
        {"label": "Activated"},
        {"label": "Subscribed"}
      ],
      "periods": [
        {"label": "Last 7 days", "delta": 6.1, "values": [2340, 1310, 820, 310]},
        {"label": "Last 30 days", "delta": 3.4, "values": [9870, 5240, 3480, 1290]},
        {
          "label": "Last 90 days",
          "delta": -1.8,
          "values": [28900, 15100, 9700, 3650]
        }
      ]
    }'></div>
  </div>
  <h3 class="u-chart-title">Funnel chart</h3>
  <p class="u-chart-desc">Stages with a layered halo and conversion pills, smooth curves or sharp cuts, and tiles with each column's number.</p>
</article>

Installation

Just this chart, with the core and the tokens:

curl -fsSL unslop.leallabs.dev/i | sh -s add funnel

No dependency The chart file already brings its own shell.

The full card from the example, as HTML ready to paste:

curl -fsSL unslop.leallabs.dev/i | sh -s add chart-funnel

Family A: shell u-chart-card > u-chart-panel > the data-u, then h3.u-chart-title and p.u-chart-desc.

Props

They go in data-u-props, as JSON. Each item in periods becomes an option in the picker and the chart animates from the old data to the new.

Prop	Type	Default	What it does
`label`	string	no default	Small label at the top of the card.
`curve`	boolean	true	Smooth curve between stages. false gives straight cuts.
`stages`	array	no default	List of `{label}`, one per stage.
`periods`	array	no default	List of `{label, delta, values}`. One value per stage.
`period`	number	0	Index of the period that opens selected.

Accessibility and keyboard

State and roles

Where	Attribute	What it says
chart svg	`role="img"` and `aria-label`	`"Label: stage value, ..."` with the stage numbers.
period toggle	`role="radiogroup"`, `role="radio"`	Current period in `aria-checked`.
period list	`role="listbox"`, `role="option"`	Opens with `aria-expanded` and marks the option in `aria-selected`.

Keyboard

Key	Does
Left and right arrows	change the period in the toggle
Enter or Space	opens the period list
Up and down arrows	moves through the options
Esc	closes without changing
Tab	closes and moves focus on

Events and API

No public events. The period change happens inside the card.