craftbits*

Hero Optimizers

A large illustrative hero SVG that animates an optimizer race across a contour-map loss landscape. Three dots descend from the top-left toward the centre minimum: SGD zigzags, Momentum overshoots and swings back, Adam takes the direct line and arrives first with a brief success glow. Theme-driven via currentColor + a single accentColor prop; reduced-motion users see a static end state.

Customize
Hero illustration
400px
accent
false

Installation

npx shadcn@latest add https://craftbits.dev/r/hero-optimizers.json

Usage

import { HeroOptimizers } from "@craft-bits/core/svg/hero-optimizers";
 
<HeroOptimizers size={400} />
 
// Tint the Adam path via the parent text color.
<div className="text-cb-accent">
  <HeroOptimizers />
</div>

Understanding the component

  1. Waypoint-driven trails. Each optimizer's path is a precomputed waypoint array. A progress motion value (0..1) interpolates the dot position and rebuilds the trail polyline on every change, so React never re-renders during the loop.
  2. Three race personalities. Adam animates with a tuned cubic-bezier ease-out (~2s direct arrival). Momentum uses a low-damped spring that naturally overshoots then settles. SGD uses a slower duration-based ease so the jagged waypoints read as jitter.
  3. Theme-driven colour. Surface, contour rings, crosshair, and caption use cb-* tokens. SGD and Momentum render in muted theme tones (var(--cb-fg-muted) and var(--cb-fg)) so the eye lands on Adam — whose colour is the single accentColor prop.
  4. Springs from the motion layer. Dot opacity uses SPRINGS.bouncy, trail and contour fades use SPRINGS.slow. Every timer is cleaned up on unmount and when reduced-motion changes.
  5. Reduced-motion safe. When prefers-reduced-motion: reduce is set (or paused is true), the loop short-circuits to a single static end state: all three dots at the minimum, trails painted in full.

Variants / Examples

// Compact thumbnail.
<HeroOptimizers size={200} />
 
// Paused — useful for OG images.
<HeroOptimizers paused />
 
// Custom hex.
<HeroOptimizers accentColor="#8b5cf6" />

Props

PropTypeDefaultDescription
accentColorstring'currentColor'Any CSS colour. Tints the Adam path and success glow ring.
sizenumber—Optional fixed pixel width. Omit to fill the parent. Height tracks the 400x280 aspect ratio.
pausedbooleanfalseWhen true, render the static end state instead of looping.
classNamestring—Extra classes merged onto the root SVG.
...restSVGAttributes<SVGSVGElement>—Other SVG props forwarded to the root.

Accessibility

  • The root SVG carries aria-hidden="true" — the illustration is decorative; pair it with a visible heading or caption in its surrounding context.
  • Motion respects prefers-reduced-motion: reduce: the loop short-circuits and renders a static end state. The paused prop offers a manual escape hatch.
  • All colours flow from currentColor plus the accentColor prop, so contrast tracks the consumer's text and accent tokens — no hardcoded hex values.

Credits

  • Extracted from: craftingattention (app/src/lessons/primitives/chrome/icons/heroes/HeroOptimizers.tsx).
  • Inspiration: classic contour-map optimizer comparison diagrams — roll downhill, but smartly.