Backdrop
Adds a portable ambient pattern behind meaningful content.
See it and copy it
Framework example
Choose Astro, React, or Elements to compare native usage against the shared visual output. Each example assumes the framework-level setup is already complete.
Readable content stays above the ambient layer.
Readable content stays above the ambient layer.
Readable content stays above the ambient layer.
Readable content stays above the ambient layer.
Framework usage
Switch targets to compare the adapter code. The preview stays visually stable because all three packages share the same tokens andui-* class contract.---
import {
Backdrop,
Card,
Grid
} from '@santi020k/lumen-astro'
const variants = ['aurora', 'dots', 'grid', 'rays'] as const
---
<Grid columns="auto" gap="lg" minItemWidth="13rem">
{variants.map(variant => (
<Backdrop style="border-radius:0.75rem;min-height:10rem" tone={variant === 'dots' ? 'accent' : 'brand'} variant={variant}>
<Card style="margin:2rem;padding:1rem" variant="glass">
<strong>{variant[0]?.toUpperCase()}{variant.slice(1)}</strong>
<p style="margin:0.25rem 0 0">Readable content stays above the ambient layer.</p>
</Card>
</Backdrop>
))}
</Grid>import { Backdrop, Card, Grid } from '@santi020k/lumen-react'
export const Example = () => (
<>
<Grid columns="auto" gap="lg" minItemWidth="13rem">
{variants.map(variant => (
<Backdrop style={{ borderRadius: '0.75rem', minHeight: '10rem' }} tone={variant === 'dots' ? 'accent' : 'brand'} variant={variant}>
<Card style={{ margin: '2rem', padding: '1rem' }} variant="glass">
<strong>{variant[0]?.toUpperCase()}{variant.slice(1)}</strong>
<p style={{ margin: '0.25rem 0 0' }}>Readable content stays above the ambient layer.</p>
</Card>
</Backdrop>
))}
</Grid>
</>
)<script type="module">
import { defineLumenElements } from '@santi020k/lumen-elements/define'
defineLumenElements()
</script>
<lumen-grid columns="auto" gap="lg" minItemWidth="13rem">
{variants.map(variant => (
<lumen-backdrop style="border-radius:0.75rem;min-height:10rem" tone={variant === 'dots' ? 'accent' : 'brand'} variant={variant}>
<lumen-card style="margin:2rem;padding:1rem" variant="glass">
<strong>{variant[0]?.toUpperCase()}{variant.slice(1)}</strong>
<p style="margin:0.25rem 0 0">Readable content stays above the ambient layer.</p>
</lumen-card>
</lumen-backdrop>
))}
</lumen-grid>Choose your target
Add this component
Choose the package for your runtime. All adapters share the Lumen stylesheet. Use the matching registry command when you want a local wrapper for that framework.
pnpm add @santi020k/lumen-astropnpm add @santi020k/lumen-astrolumen add Backdroplumen add Backdroppnpm add @santi020k/lumen-reactpnpm add @santi020k/lumen-reactlumen add Backdrop --target reactlumen add Backdrop --target reactpnpm add @santi020k/lumen-elementspnpm add @santi020k/lumen-elementslumen add Backdrop --target elementslumen add Backdrop --target elementsAPI reference
Lumen-specific props and runtime attributes for the Astro primitive. React props follow the same names; Elements use equivalent kebab-case attributes where custom elements expose them.
| Attribute | Values | Default | Description |
|---|---|---|---|
| variant | "aurora" | "dots" | "grid" | "rays" | "aurora" | Selects the ambient background pattern. |
| tone | "brand" | "accent" | "neutral" | "brand" | Uses a semantic Lumen color for the pattern. |
| intensity | "subtle" | "medium" | "strong" | "medium" | Controls decoration opacity without fading child content. |
| children | rendered content | required | Keeps meaningful content above the decorative layer. |
| class, className | string | "" | Merges custom classes with the generated ui-* root classes. |
| ...native attributes | HTML attributes | - | Forwards standard attributes to the root element unless the component consumes them. |