forever components

Primary Grid Compositions

Trading Weight

Red and blue blocks trade mass across a fixed axis; a yellow counterweight keeps the neoplastic grid balanced. Slow eased transitions reseed randomly.

canvasmedium complexitysubtle motion

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Live demo — the real component, running in a sandbox. One self-contained HTML file, zero dependencies. Open it on the canvas →
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When to use it

Art/design-themed hero backgrounds, generative aesthetic loops, neoplastic or De Stijl brand contexts.

When not to

Contexts needing text legibility over canvas or user interaction — tile is fully passive.

Working with an AI agent

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

Set axisX=0.5 to center the axis, change dur=3600 to slow transitions, swap C.red to '#f6c700' and C.blue to '#1a6e3c'. 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

  • axis position (axisX=0.62)
  • transition duration (dur=2400)
  • hold pause length (1200ms)
  • color palette (C object)
  • weight range (rand(.25,.85))
  • theme tokens (:root dark defaults + [data-theme=light] overrides)

Keep intact

  • IIFE wrapper
  • prefers-reduced-motion guard (REDUCED)
  • visibilitychange pause/resume
  • DPR-aware fitCanvas()
  • theme hook (?theme= bootstrap + forever:theme message listener + theme tokens)

Known limitations

  • Background color set in both CSS and canvas fill — must change both to recolor the field
  • No touch/pointer interactivity; fully autonomous

geometriccanvasbalancecolor-blocksambientcomposition

More Primary Grid Compositions components

  • The Rebalancing Gridneoplastic grid of black lines slides to new layouts while red, blue, and yellow cells fade in, resolving into a balanced composition every few seconds.
  • Broadway Boogie WoogieColored squares pulse along yellow grid avenues like NYC traffic; intersection dots blink in red, blue, and yellow referencing neoplastic's 1943 painting.
  • Self-Assembling Compositionneoplastic grid builds itself every 4 s: cells scale in staggered, black lines draw outward, primary colors fill random regions, then recomposes anew.
  • Self-Painting CellsA fixed asymmetric neoplastic grid whose cells autonomously cycle through red, blue, and yellow with smooth CSS transitions, like an unattended painter at…
  • Victory Boogie MarqueeA 9x9 neoplastic grid rotated 45° as a diamond; red, blue, and yellow squares ripple diagonally in a boogie-woogie march via time-stepped index.
  • Equilibrium Engineneoplastic grid with spring-driven lines; primary color blocks recolor every 2s; a center-of-mass dot tracks the weighted area of colored cells.