# Rhino.Render.UI namespace

Assembly: [RhinoCommon](https://developer.rhino3d.com/api/rhinocommon/assembly/rhinocommon.md)

## Interfaces

- [IUserInterfaceSection](https://developer.rhino3d.com/api/rhinocommon/type/rhino.render.ui.iuserinterfacesection.md): Implement this interface in your user control to get UserInterfaceSection event notification.

## Classes

- [UserInterfaceSection](https://developer.rhino3d.com/api/rhinocommon/type/rhino.render.ui.userinterfacesection.md): Custom user interface section manager
- [WorldMapDayNight](https://developer.rhino3d.com/api/rhinocommon/type/rhino.render.ui.worldmapdaynight.md)