---
title: Activating CSS theme support
description: There are different plugins that activate CSS themes support.
locale: en-US
canonical_url: https://www.servicenow.com/docs/r/australia/platform-user-interface/r\_ActivatingCSSThemeSupport.html
release: australia
topic_type: reference
last_updated: "2026-03-12"
reading_time_minutes: 1
breadcrumb: [CSS theme support, Customizing instance appearance, User interface configuration, Working in Core UI, Configure UIs and portals, Configure user experiences]
---

# Activating CSS theme support

There are different plugins that activate CSS themes support.

Activate the following plugins to use themes, based on the version of the UI you use.

**Core UI:** CSS Theme support See Activate a plugin.

**Parent Topic:**[CSS theme support](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/australia/markdown/australia/platform-user-interface/c_CSSThemeSupport.md)

**Related topics**  


[Create or customize a theme]()

[Default CSS styles]()