GitHub user worker123-tech created a discussion: Question: How to apply
per-user theme to embedded dashboards without modifying global dashboard
configuration?
### Environment
* Superset version: 6.1.0rc1
* Deployment: Docker
* Usage: Embedded dashboards (iframe) inside a custom frontend UI
---
### Problem Description
I am embedding Superset dashboards into my own frontend application.
In my application, users can switch between different UI themes (e.g., light /
dark / custom brand themes).
---
### Expected Behavior
When a user switches the theme in the frontend UI:
* Only the **current user’s view** of the embedded dashboard should change
* The theme change should be **isolated per user session**
* It should **NOT modify the dashboard globally in Superset**
---
### Current Approach
Currently, I am updating the dashboard configuration via API:
```http
PUT /api/v1/dashboard/{id}
```
For example:
```json
{
"json_metadata": {
"color_scheme": "custom_theme"
}
}
```
---
### Issue
This approach updates the dashboard at the database level, which results in:
* All users seeing the updated theme
* No way to apply different themes per user
* Theme changes are global, not session-based
---
### Key Requirement
I am looking for a way to:
* Apply theme dynamically per user (e.g., via embedding, URL params, or session
context), theme of dashboard and chart will be all changed
* Avoid modifying dashboard metadata in the database
* Keep theme changes isolated to individual users
---
### Questions
1. Is there any supported way in Superset to apply themes at the **user/session
level** instead of globally?
2. Can themes be controlled dynamically when embedding dashboards (e.g., via
URL parameters or API)?
3. Is there any recommended approach to achieve per-user theming for embedded
dashboards?
---
### Additional Notes
* The dashboards are embedded via iframe
* Frontend and Superset are under the same domain
* I want to avoid modifying Superset source code if possible
---
Any guidance or recommended best practices would be greatly appreciated.
Thanks!
GitHub link: https://github.com/apache/superset/discussions/38900
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