# How to set custom background color?

<figure><img src="https://3611830798-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MjbN1iGmN_HBnj_fyU9%2Fuploads%2FDJJs0sYPXbr6MoBbfijO%2Fimage.png?alt=media&#x26;token=4708cba3-e898-42dc-b46d-b9714e9b07fe" alt=""><figcaption></figcaption></figure>

Added Custom Background Color to **Effect>Style** for a flexible control over the background color in the 3D viewport.

* This feature meets the request of custom background color in specific projects, such as rendering composition materials or parallel projection views.

{% hint style="info" %}
**Notes:**

* **Parameter priority:** This setting will be overridden by the background color set in the Outline mode. Disable the Outline mode to restore the custom background color.
* This parameter only affects the viewport background and does not change models, environment lighting, or reflections.
  {% endhint %}

<figure><img src="https://3611830798-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MjbN1iGmN_HBnj_fyU9%2Fuploads%2F0dMRVbqEyyUKJLpg9ihB%2Fimage.png?alt=media&#x26;token=75d58c2a-f25f-480b-8147-6974aa373e50" alt=""><figcaption></figcaption></figure>


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.d5render.com/user-guide/effect/how-to-set-custom-background-color.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.