| **src** | _<empty>_ | The URL to the OpenAPI Specification file. This can be relative to the URL of your page if it is a leaf or branch bundle. |
If you want to print out (or generate a PDF) from your Swagger documentation, don't initiate printing directly from the page because the elements are optimized for interactive usage in a browser.
Instead, open the [print preview]({{% relref "basics/configuration/#activate-print-support" %}}) in your browser and initiate printing from that page. This page is optimized for reading and expands most of the available sections.
Swagger is configured with default settings. You can customize Swagger's default settings for all of your files thru a JSON object in your `config.toml` or override these settings per page thru your pages frontmatter.
The JSON object of your `config.toml` / frontmatter is forwarded into Swagger's initialization. At the moment, only the `theme` setting is supported.
The `theme` setting can also be set by your used color variant. This will be the sitewide default and can - again - be overridden by your settings in `config.toml` or frontmatter.