code: private BufferedImage create_KNOB_Image(final int WIDTH, final KnobType KNOB_TYPE, final KnobStyle KNOB_STYLE) {
          return KNOB_FACTORY.create_KNOB_Image(WIDTH, KNOB_TYPE, KNOB_STYLE);
      }
docs: Creates a single alignment post image that could be placed on all the positions where it is needed
  @param WIDTH
  @param KNOB_TYPE
  @return a buffered image that contains a single alignment post of the given type