code: public DoubleProperty panSensitivityProperty() {
  		if (this.panSensitivity == null) {
  			this.panSensitivity = new StyleableDoubleProperty(DEFAULT_PAN_SENSITIVITY) {
  				@Override
  				public void invalidated() {
  					if (get() <= MIN_PAN_SENSITIVITY) {
  						set(MIN_PAN_SENSITIVITY);
  					}
  				}
  
  				@Override
  				public CssMetaData<ZoomablePane<?>, Number> getCssMetaData() {
  					return StyleableProperties.PAN_SENSITIVITY;
  				}
  
  				@Override
  				public Object getBean() {
  					return ZoomablePane.this;
  				}
  
  				@Override
  				public String getName() {
  					return PAN_SENSITIVITY_PROPERTY;
  				}
  			};
  		}
  		return this.panSensitivity;
  	}
docs: Replies the property that indicates the sensibility of the panning moves.
  The sensibility is a strictly positive number that is multiplied to the
  distance covered by the mouse motion for obtaining the move to
  apply to the document.
  The default value is 1.
  
  @return the property.