> For clean Markdown content of this page, append .md to this URL. For the complete documentation index, see https://buildwithfern.com/learn/llms.txt.

## Improvements to 404 Pages

customization

We now have themed 404 pages for your docs, using your theme colors, fonts, and buttons. We also maintain the best-effort
navigation state on this page using the 404 page URL, so that users can easily navigate back to your docs.

![404 Page](/learn/_fern-img/948b9007e74a5933bedad74878e355cc315a2c6728d18bbed4252c741e308cbd.webp)