code: public static void setSelectionColor(Integer color) {
  		final Preferences prefs = Preferences.userNodeForPackage(BusLayerConstants.class);
  		if (prefs != null) {
  			if (color == null || color == DEFAULT_SELECTION_COLOR) {
  				prefs.remove("SELECTION_COLOR"); //$NON-NLS-1$
  			} else {
  				prefs.put("SELECTION_COLOR", color.toString()); //$NON-NLS-1$
  			}
  			try {
  				prefs.flush();
  			} catch (BackingStoreException exception) {
  				//
  			}
  		}
  	}
docs: Set the default color selection.
  
  @param color is the default color for selection.