∞ forever components

Charts & Flow

Waterfall

Waterfall chart with staggered bar reveals and dashed connectors. Green bars for gains, pink for losses, with a scan dot tracing the running total.

canvasmedium complexitymoderate motion

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When to use it

Finance dashboards, earnings breakdowns, P&L summaries, or any demo showing incremental contribution to a total.

When not to

Contexts needing user interaction with chart data, or when more than ~8 bars are needed — bars shrink below readability on narrow viewports.

Working with an AI agent

Every component ships agent-ready metadata. An example instruction for this one:

Change the STEP data to a new P&L scenario: update label/value pairs in the STEP array, set UP to '#60a5fa' for blue gains, and slow the stride to 0.55. Theme: dark tokens live in :root, the light variant in :root[data-theme="light"]; ?theme=light or a {type:'forever:theme'} postMessage switches at runtime.

Safe to edit

  • bar data (STEP array — labels, values, types)
  • gain/loss colors (UP, DOWN variables)
  • animation stride and perBar timing
  • scan dot color (ACC variable)
  • grid and axis opacity (GRID, AX)
  • theme tokens (:root dark defaults + [data-theme=light] overrides)

Keep intact

  • IIFE wrapper
  • prefers-reduced-motion guard (reduce variable)
  • visibilitychange stop/start
  • DPR-aware canvas sizing
  • theme hook (?theme= bootstrap + forever:theme message listener + theme tokens)

Known limitations

  • Bar labels can overlap on narrow screens with many steps — no responsive label truncation
  • Total bar value is implicitly computed from cumulative sum; hardcoding a different total requires updating size() logic
  • No tooltip or hover interaction — values appear only as inline chips above bars

waterfallchartfinancecanvasdata-vizstaggeredbusiness

More Charts & Flow components

  • Sankey FlowThree-stage Sankey diagram on dark canvas: bezier ribbons grow stage-by-stage from origins to hubs to outcomes, pulsing softly in opacity to show flow volume.
  • Chord DiagramEight ring nodes with curved ribbons that swell and shrink as weights rebalance every ~3s. Additive blending creates glowing color overlaps.
  • Treemap7 rounded cells partition the canvas via slice-dice treemap; cells lerp to new sizes every 2.6 s as synthetic values drift, with a subtle alpha pulse.
  • CandlesticksGreen and red OHLC candles stream in from the right with smooth slide animation; newest candle grows from pivot. Dashed last-price marker traces horizontally.
  • StreamgraphSix translucent stacked bands breathe around a central baseline via layered sines; a sweeping readout line tracks across with colored tick dots per band.
  • Sparkline GridNine teal sparklines in a 3x3 grid scroll leftward every 140ms; orange/blue diamonds mark running max/min and a halo dot tracks the latest value.