code: def _load_cmap_list(self):
          
          # store the current name
          name = self.get_name()
  
          # clear the list
          self._combobox_cmaps.blockSignals(True)
          self._combobox_cmaps.clear()
  
          # list the existing contents
          paths = _settings.ListDir('colormaps')
  
          # loop over the paths and add the names to the list
          for path in paths:
              self._combobox_cmaps.addItem(_os.path.splitext(path)[0])
  
          # try to select the current name
          self._combobox_cmaps.setCurrentIndex(self._combobox_cmaps.findText(name))
          self._combobox_cmaps.blockSignals(False)
docs: Searches the colormaps directory for all files, populates the list.