code: def hoverEnterEvent(self, ev):
      self.savedPen = self.pen()
      self.setPen(pg.mkPen(255, 255, 255))
      ev.ignore()
  
file_path: pyqtgraph/pyqtgraph/examples/ViewBox.py
imports: import numpy
  import pyqtgraph
  from pyqtgraph.Qt import QtCore, QtWidgets
label_desc: Use image node_id 2 for calling the movableRect obj's underlying member method code with example usage: obj.hoverEnterEvent(ev) without return types