/** Load quit button */
 private static void loadQuitButton() {
   if (quitButton == null) {
     quitButton = Initialization.getSpriteFromMenu(Initialization.MENUS.QUIT_BUTTON.toString());
   }
 }
 /** Load the title button */
 private static void loadTitleButton() {
   if (titleButton == null) {
     titleButton = Initialization.getSpriteFromMenu(Initialization.MENUS.TITLE_BUTTON.toString());
   }
 }
 /** Load continue button */
 private static void loadContinueButton() {
   if (continueButton == null) {
     continueButton =
         Initialization.getSpriteFromMenu(Initialization.MENUS.CONTINUE_BUTTON.toString());
   }
 }
 /** Load the background */
 private static void loadBackground() {
   if (background == null) {
     background = Initialization.getSpriteFromMenu(Initialization.MENUS.BACKGROUND.toString());
   }
 }