Adds Adjustment Handle styling.
Features
- Adjustment Handles Styling
- The appearance of adjustment handles can now be customized.
- The HandlesVisualStyle objects returned by them provide sub-properties corresponding to graphic attributes of the different handle types.
- Adjustment handles can now be painted in solid color or with arbitrary brushes such as gradients and patterns.
- Miscellaneous
- nodeTextEditing, linkTextEditing and cellTextEditing validation events let you prevent users from editing a specific item.
- ActiveItem reference is now serialized in JSON format.