Flags that specify which brush controls the [IOnInspectorGUI.ShowBrushesGUI] method displays.
| Select | Display the brush selection control. | 
| Inspect | Display the brush inspector for the currently selected brush. | 
| Size | Display the brush size control. | 
| Opacity | Display the brush opacity control. | 
| SelectAndInspect | Display the brush selection control, and the brush inspector for the currently selected brush. | 
| All | Display all brush controls. |