docs: def editColormap(self):
          """Prompts the user with a dialog to change colormap"""
          self.editor = pg.ImageView()
          # remove the ROI and Norm buttons
          self.editor.ui.roiBtn.setVisible(False)
          self.editor.ui.menuBtn.setVisible(False)
          self.editor.setImage(self.imageArray)
          if self.imgArgs['state'] is not None:
              self.editor.getHistogramWidget().item.gradient.restoreState(self.imgArgs['state'])
              self.editor.getHistogramWidget().item.setLevels(*self.imgArgs['levels'])
          
          self.editor.closeEvent = self._editor_close
          self.editor.setWindowModality(QtCore.Qt.ApplicationModal)
          self.editor.show()