public final ObjectProperty<DialogControl> dialogControlProperty() {
    return dialogControl;
  }
The root node of the dialog, the {@link DialogControl} contains all visual elements shown in
the dialog. As such, it is possible to completely adjust the display of the dialog by modifying
the existing dialog control or creating a new one.
@return the {@code dialogControl} of this {@link WorkbenchDialog}
workbenchfx-core/src/main/java/com/dlsc/workbenchfx/model/WorkbenchDialog.java