> ## Documentation Index
> Fetch the complete documentation index at: https://openmetadata-add-ontology-explorer-docs.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.
# How to Change the Login Page & Nav Bar Logo and Favicon
# How to Change the Login Page & Nav Bar Logo and Favicon
OpenMetadata allows you to customize the logo and favicons. In this guide we will see how to add custom logo and favicon.
1. Navigate to **Setting >> Preferences >> Themes**
page and page and then you will get option to enter `Custom Logo` url.
2. Enter the values in the edit form and **Save** the changes.
For logos, ensure the following sizing requirements:
* **Monogram/Favicon**: Use a 1:1 aspect ratio.
* **Logo**: Use a 16:9 aspect ratio.
3. After saving the changes, refresh the page to view the updated logos and favicon.
