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

# UI

- [App Controller](https://next-docs.cloudio.io/ui/app-controller.md): Application level controller
- [Page Controller](https://next-docs.cloudio.io/ui/page-controller.md): Application level controller
- [Controller Component](https://next-docs.cloudio.io/ui/controller-component.md)
- [Custom Component](https://next-docs.cloudio.io/ui/custom-component.md)
- [Sample Property Definitions](https://next-docs.cloudio.io/ui/custom-component/sample-property-definitions.md)
- [Custom Component Types](https://next-docs.cloudio.io/ui/custom-component/types.md)