RELATIONSHIP_LABEL_PROPERTIES_LABEL, getFieldEditorParent() );
relPropertyNameField.setEmptyStringAllowed( true );
addField( relPropertyNameField, PROPTERTY_NAMES_NOTE );
// icon locations
DirectoryFieldEditor iconLocationField = new DirectoryFieldEditor(
DecoratorPreferences.NODE_ICON_LOCATION,
NODE_ICONS_LOCATION_LABEL, getFieldEditorParent() );
iconLocationField.setEmptyStringAllowed( true );
iconLocationField.setErrorMessage( NODE_ICONS_LOCATION_ERROR );
addField( iconLocationField, ICON_LOCATION_NOTE );
// node icon filename properties
StringFieldEditor iconPropertyNameField = new StringFieldEditor(
DecoratorPreferences.NODE_ICON_PROPERTY_NAMES,