Charts & Flow
Candlesticks
Green and red OHLC candles stream in from the right with smooth slide animation; newest candle grows from pivot. Dashed last-price marker traces horizontally.
canvasmedium complexitymoderate motion
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Worth keeping?
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When to use it
Fintech dashboards, trading UIs, ambient data-viz backgrounds where live market feel is needed.
When not to
Real data display without replacing the synthetic random-walk generator. Light-colored backgrounds — colors are hardcoded for dark themes.
Working with an AI agent
Every component ships agent-ready metadata. An example instruction for this one:
Change UP color to '#f0b429' and DN to '#e05c6e', increase visible candle count to 36 by setting N=36, and slow the streaming to slideDur=1600. 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
- visible candle count (N=26)
- slide duration (slideDur=1100ms)
- up/down colors (UP, DN variables)
- grid line opacity (GRID, AXIS)
- candle body width ratio (bw=slot*0.56)
- theme tokens (:root dark defaults + [data-theme=light] overrides)
Keep intact
- IIFE wrapper
- prefers-reduced-motion static fallback (drawOneFrame)
- visibilitychange pause/resume
- DPR-aware canvas sizing
- theme hook (?theme= bootstrap + forever:theme message listener + theme tokens)
Known limitations
- Synthetic random-walk data only — no real data binding
- Light re-theme via the [data-theme=light] token block; catalog bg/accent describe the dark default
- No Y-axis price labels rendered
More Charts & Flow components
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- 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.
- Bubble Pack64 mint/teal/amber/coral circles settle under gravity with collision physics; size encodes value. Large bubbles pull toward center with a breathing pulse.