> For the complete documentation index, see [llms.txt](https://docs.scandipwa.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.scandipwa.com/developing-with-scandi/override-mechanism/parent-themes.md).

# Parent Themes

The [Override Mechanism](/developing-with-scandi/override-mechanism.md) is about taking a base parent theme, and overriding parts of it to create a new, customized theme. By default, that parent theme is `@scandipwa/scandipwa`, the standard ScandiPWA theme – but it doesn't have to be!

Any theme created using `create-scandipwa-app` can be extended. Read the [CSA documentation](https://scandipwa.gitbook.io/create-scandipwa-app/themes/extensions-and-themes) to learn more.