> For the complete documentation index, see [llms.txt](https://docs.trydrupal.com/radix/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.trydrupal.com/radix/understanding-radix.md).

# Understanding Radix

- [Individual files and directories](https://docs.trydrupal.com/radix/understanding-radix/individual-files-and-directories.md): Read about each file and directory and their purposes.
- [Bootstrap Build](https://docs.trydrupal.com/radix/understanding-radix/bootstrap-build.md): A free Bootstrap variable builder, Start from scratch or reuse free featured designs.
- [Bootswatch](https://docs.trydrupal.com/radix/understanding-radix/bootswatch.md): Easy Bootswatch integration
- [Icons (Icon API)](https://docs.trydrupal.com/radix/understanding-radix/icons.md): Integrate Bootstrap icons or any other icon set into your own theme with ease.