# Grasshopper.GUI.Colours namespace

Assembly: [Grasshopper](https://developer.rhino3d.com/api/gh1/assembly/grasshopper.md)

## Classes

- [GH_ColourBucket](https://developer.rhino3d.com/api/gh1/type/grasshopper.gui.colours.gh-colourbucket.md)
- [GH_MultiColourPalette](https://developer.rhino3d.com/api/gh1/type/grasshopper.gui.colours.gh-multicolourpalette.md)
- [GH_MultiColourPaletteEventArgs](https://developer.rhino3d.com/api/gh1/type/grasshopper.gui.colours.gh-multicolourpaletteeventargs.md)
- [GH_MultiColourPicker](https://developer.rhino3d.com/api/gh1/type/grasshopper.gui.colours.gh-multicolourpicker.md)

## Enums

- [GH_ColourBucketState](https://developer.rhino3d.com/api/gh1/type/grasshopper.gui.colours.gh-colourbucketstate.md)

## Delegates

- [GH_MultiColourPalette.SelectionChangedEventHandler](https://developer.rhino3d.com/api/gh1/type/grasshopper.gui.colours.gh-multicolourpalette.selectionchangedeventhandler.md)