code: def changeBackColor(self, isFloating):
      if isFloating:
          self.setStyleSheet(
              "QDockWidget { background-color:rgb(255,255,255); }"
          )
      else:
          self.setStyleSheet(
              "QDockWidget { background-color:rgb(204,204,248); }"
          )
  
file_path: PaddleSeg/EISeg/eiseg/widget/create.py
imports: from qtpy.QtWidgets import QDockWidget
  from qtpy import QtCore, QtGui, QtWidgets
  from qtpy.QtCore import Qt
label_desc: Use image node_id 2 for calling the DockWidget obj's underlying member method code with example usage: obj.changeBackColor(isFloating) without return types