type | If the drawer is for a custom Serializable class, the type should be that class. If the drawer is for script variables with a specific PropertyAttribute, the type should be that attribute. |
useForChildren | If true, the drawer will be used for any children of the specified class unless they define their own drawer. |
Tells a PropertyDrawer or DecoratorDrawer class which run-time class or attribute it's a drawer for.
When you make a custom drawer, you need put this attribute on the drawer class.
Additional resources: PropertyDrawer class, DecoratorDrawer class.