> For the complete documentation index, see [llms.txt](https://cortex-docs.paloaltonetworks.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cortex-docs.paloaltonetworks.com/xsoar-6-administrator-guide/6.15/onboard-cortex-xsoar/users-and-roles/set-the-default-theme-for-new-users.md).

# Set the Default Theme for New Users

Set the default color theme for new Cortex XSOAR 6.15 users with server configuration settings.

By default, the color theme for new users is light. When you add the following server configurations, the selected theme is the one applied to all new users. Each user can change the theme in their user preferences.

1. Go to Settings → About → **Troubleshooting**.
2. In the **Server Configuration** section, click **Add Server Configuration**.
   * Key: `default.theme`
   * Value: Can be `dark`, `darkula`, or `light`


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