Files
hyperframes/docs/catalog/components/vignette.mdx
miga-heygenandMiguel Ángel 7b5fdb1ad2 fix(docs): emit catalog source accordion titles as plain strings (#4006)
The generated catalog pages rendered the "Source" accordion title as a
JSX expression, `<Accordion title={`name.html`}>`. Mintlify's search
indexer stringifies expression attribute nodes rather than evaluating
them, so every one of the 399 catalog pages surfaced its Source section
in search results as "[object Object]" (visible on the Scroll Feed page,
among others).

The template literal carried no escaping benefit: every title is a
single-segment `name.html` path, and a double-quoted JSX string handles
it directly. Introduce `mdxStringAttribute`, which emits a plain
`name="value"` attribute and escapes `& " < { }` as HTML character
references (MDX decodes references inside quoted attribute values, and
unlike JSON.stringify it does not rely on backslash escapes, which JSX
strings do not honour). Use it for both the Source accordion title and
the preview iframe title, and regenerate the catalog pages.

Regenerated with `npx tsx scripts/generate-catalog-pages.ts`; the only
change across the 399 pages is the one Accordion title line each.

Co-authored-by: Miguel Ángel <miguel.sierra@heygen.com>
2026-09-16 11:55:00 -04:00

94 lines
3.2 KiB
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---
title: "Vignette"
description: "Cinematic radial vignette overlay using a pure-CSS gradient — darkens the edges to pull focus toward the center"
---
import { InstallCommand } from "/snippets/install-command.jsx";
## Install
<InstallCommand command="npx hyperframes add vignette" item="vignette" />
That writes one file: `compositions/components/vignette.html`.
<iframe
className="w-full aspect-video rounded-xl border-0 bg-zinc-100 dark:bg-zinc-800"
title="vignette preview"
loading="lazy"
srcDoc={`<!doctype html><html><head><meta charset="utf-8"><style>html,body{margin:0;height:100%;overflow:hidden;background:transparent}hyperframes-player{display:block;width:100%;height:100%}</style><script src="https://cdn.jsdelivr.net/npm/@hyperframes/player@latest/dist/hyperframes-player.global.js"><\/script></head><body><script>fetch("/public/catalog/components/vignette.json").then(function(r){return r.json()}).then(function(d){var p=document.createElement("hyperframes-player");p.setAttribute("srcdoc",d.html);p.setAttribute("controls","");p.setAttribute("autoplay","");p.setAttribute("loop","");p.setAttribute("muted","");p.setAttribute("poster","https://static.heygen.ai/hyperframes-oss/docs/images/catalog/components/vignette.png");document.body.appendChild(p)});<\/script></body></html>`}
/>
## Source
<Accordion title="vignette.html">
```html
<!--
Vignette — cinematic radial darkening overlay.
Usage: paste this snippet inside your composition's positioned stage.
The overlay covers the full viewport with pointer-events: none so it
sits on top of all content without blocking interaction.
Customize:
- --vignette-color: edge color and alpha (default rgba(0, 0, 0, 0.7))
- --vignette-size: where the transparent center ends (default 45%)
- --vignette-edge: where the color reaches its final stop (default 100%)
- --vignette-shape: ellipse | circle (default ellipse)
- z-index: defaults to 90 so grain-overlay (100) reads on top
-->
<div
id="hf-vignette"
style="
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
pointer-events: none;
z-index: 90;
"
></div>
<style>
#hf-vignette {
background: radial-gradient(
var(--vignette-shape, ellipse) at center,
transparent var(--vignette-size, 45%),
var(--vignette-color, rgba(0, 0, 0, 0.7)) var(--vignette-edge, 100%)
);
}
</style>
<!--
Timeline integration example (add to your composition's GSAP timeline):
// Fade the vignette in over the first second
tl.fromTo("#hf-vignette",
{ "--vignette-color": "rgba(0, 0, 0, 0)" },
{ "--vignette-color": "rgba(0, 0, 0, 0.7)", duration: 1, ease: "power2.out" },
0,
);
// Or breathe the size in and out (works with any easing)
tl.to("#hf-vignette", { "--vignette-size": "35%", duration: 1, ease: "sine.inOut" }, 2);
-->
```
</Accordion>
## Usage
Open `compositions/components/vignette.html` and paste its contents into your composition. See the comment header in the file for detailed instructions.
{/* hf:generated-footer */}
Tagged `vignette` `overlay` `cinematic` `effect`.
## Related topics
- [Browse the complete Catalog](/catalog)
- [Add assets and Catalog items in Studio](/studio/assets-and-blocks)
- [Build a richer composition](/go-further)