Add: ChocoSettingButton

src/game/main_menu/main_menu.js

@@ -185,13 +185,16 @@ MainMenu.prototype.makeQuitButton = function() {
 	// quitButton.addIcon("tile_choco");
 	// quitButton.setIconSize(30);
 
+	var settingButton = new ChocoSettingButton(
+		(function() { console.log("setting"); }).bind(this)
+	);
 	var backButton = new ChocoBackButton(
 		(function() { console.log("back"); }).bind(this)
 	);
 	// backButton.addIcon("tile_choco");
 	// backButton.setIconSize(30);
 
-	this.appGroupButtons.quitButton = quitButton;
+	this.appGroupButtons.settingButton = settingButton;
 	this.appGroupButtons.backButton = backButton;
 }