Arc

An electric-storm background: seeded midpoint-displacement lightning bolts fork down from a faint cloud glow toward random ground points, drawn as layered strokes (wide glow, colored haze, white-hot core) with flicker re-strikes and afterimage persistence. Click to call a strike to your cursor. Photosensitivity-safe by design: shaped pulse trains (max 3 peaks, 130ms+ apart), a hard 1.25s strike cooldown, and a flashCap clamp on full-frame luminance. Canvas 2D, idle-silent between strikes, offscreen-paused, reduced-motion poster frame. Clicks stack (up to three queued strikes, still cooldown-clamped), a `strike()` ref handle calls bolts programmatically, and a ghost click idles the storm when untouched.