---
title: Defs
---
The `Defs` object in FreeSewing's core library represents an SVG document's
[`defs` element](https://developer.mozilla.org/en-US/docs/Web/SVG/Element/defs).
It is not directly exposed, but it is available as the `defs` attribute
of an [Svg object](/reference/api/svg/defs).
While the properties and methods exposed by this object are typically only used internally,
they are documented here to facilitate development of plugins.
## Properties
A Defs object comes with the following property:
- `list` : Holds the internal object in which entries of the `defs` element are stored
## Defs methods
<ReadMore />
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