# Customizing the Talend Data Catalog interface using configuration files

Talend Data Catalog enables you to customize the user interface including the login page and the header.

You can customize the following UI elements in the MM.properties file:

| UI element | Description |
| --- | --- |
| Favicon | Save the favicon file in the<br>&lt;TDC\_HOME&gt;\conf\resources\&lt;FavIcon.ico&gt;<br>directory and type in the file name as the value for the<br>miti.mimm.appicon parameter. It can also be a .png<br>file. |
| Login page | Save the login logo file in the<br>&lt;TDC\_HOME&gt;\conf\resources\&lt;LoginLogo.svg&gt;<br>directory and type in the file name as the value for the<br>miti.mimm.login.logoimage parameter. It can also be<br>a .png file.<br><br>You can also customize the background and font colors with<br>the miti.mimm.login.bgcolor and<br>miti.mimm.login.fontcolor<br>parameters. |
| Header | Save the header logo file in the<br>&lt;TDC\_HOME&gt;\conf\resources\&lt;HeaderLogo.svg&gt;<br>directory and type in the file name as the value for the<br>miti.mimm.header.logoimage parameter. It can also<br>be a .png file. The header logo must respect the following requirements:<br><br><ul> <li>Its height must be 27px.</li> <li>It is recommended to have a single color.</li> <li>Its color should match the font color.</li> <li>Its color must be compatible with the selected background								color.</li> </ul><br><br>You can also customize the background and font colors with the<br>miti.mimm.header.bgcolor and<br>miti.mimm.header.fontcolor<br>parameters.<br><br>The header menu is not customizable. For more<br>customizations, use the dashboards. |

You can add advanced customizations with the &lt;TDC\_HOME&gt;\conf\resources\web\ directory and the &lt;TDC\_HOME&gt;\conf\resources\MetadataExplorer.xml file.