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Feb 10, 2026
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[pull] master from cube-js:master #300

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31 changes: 31 additions & 0 deletions docs/pages/product/embedding/signed-embedding.mdx
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Expand Up @@ -152,6 +152,37 @@ Here's a complete HTML example that demonstrates the full flow for embedding a d
</html>
```

## Customizing the theme

You can customize the embedded application theme by setting it to `light`, `dark`, or `auto` (follows system preference).

**Method 1: Query parameters**

Add a `theme` parameter to the embed URL:

```html
<iframe
id="cube-dashboard"
title="Dashboard"
src="https://your-tenant.cubecloud.dev/embed/dashboard/YOUR_DASHBOARD_PUBLIC_ID?session=YOUR_SESSION_ID&theme=dark"
width="100%"
></iframe>
```

**Method 2: PostMessage API**

Dynamically update the theme from the parent window:

```javascript
const iframe = document.getElementById('cube-dashboard');
iframe.contentWindow.postMessage({
type: 'SET_THEME',
payload: 'dark' // 'light', 'dark', or 'auto'
}, '*');
```

This is useful for providing theme toggles or synchronizing with your application's theme.

## User attributes

User attributes enable row-level security and personalized chat responses by filtering data based on user permissions. The attributes you pass during session generation automatically filter data queries and responses.
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