diff --git a/src/game/lib/color/main_color.js b/src/game/lib/color/main_color.js
new file mode 100644
index 0000000..dc5c8bc
--- /dev/null
+++ b/src/game/lib/color/main_color.js
@@ -0,0 +1,16 @@
+// MainColor.prototype = Object.create(Phaser.Sprite.prototype);
+MainColor.constructor = MainColor;
+
+function MainColor() {
+}
+
+
+MainColor.LIGHT_CHOCO_STRING	= "#BF8763";
+MainColor.CHOCO_STRING			= "#805A42";
+MainColor.DARK_CHOCO_STRING		= "#402D21";
+MainColor.LIGHTER_CHOCO_STRING	= "#E6A277";
+
+MainColor.LIGHT_CHOCO_HEX		= 0xBF8763;
+MainColor.CHOCO_HEX				= 0x805A42;
+MainColor.DARK_CHOCO_HEX		= 0x402D21;
+MainColor.LIGHTER_CHOCO_HEX		= 0xE6A277;
\ No newline at end of file
diff --git a/src/game/main_menu/app_area_bg.js b/src/game/main_menu/app_area_bg.js
deleted file mode 100644
index 00adbe1..0000000
--- a/src/game/main_menu/app_area_bg.js
+++ /dev/null
@@ -1,26 +0,0 @@
-function AppAreaBG(color, alpha, x, y, width, height) {
-	game.add.graphics()
-		.beginFill(color, alpha)
-		.drawRect(x, y, width, height);
-}
-
-AppAreaBG.prototype.printText = function(text, x, y, size, color, alpha) {
-	var fontStyle = { font: "36px Arial", fill: "#fff", align: "left", boundsAlignH: "left", boundsAlignV: "bottom" };
-	var titleText = game.add.text(x, y, text, fontStyle);
-	titleText.anchor.set(0.5);
-	titleText.fontSize = size;
-	titleText.addColor(color, 0);
-	titleText.alpha = alpha;
-}
-
-AppAreaBG.COLOR_MOUSE_APP		= 0xffce54;
-AppAreaBG.COLOR_TYPING_APP		= 0x99ccff;
-
-AppAreaBG.COLOR_TYPING_KOREAN	= 0xbbccff;
-AppAreaBG.COLOR_TYPING_ENGLISH	= 0x88bbff;
-
-AppAreaBG.GAP_X					= 10;
-AppAreaBG.GAP_Y					= 10;
-
-AppAreaBG.MARGIN_X				= 20;
-AppAreaBG.MARGIN_Y				= 10;
\ No newline at end of file
diff --git a/src/game/main_menu/main_menu.js b/src/game/main_menu/main_menu.js
index 62f92af..e5d3b10 100644
--- a/src/game/main_menu/main_menu.js
+++ b/src/game/main_menu/main_menu.js
@@ -1,37 +1,13 @@
 var MainMenu = {
 
 	preload: function() {
+		game.load.image('tile_choco',	'../../../resources/image/background/tile_choco.png');
 		game.load.image('icon_fullscreen', '../../../resources/image/icon/fullscreen_white.png');
 	},
 
 	create: function() {
 		game.stage.backgroundColor = '#4d4d4d';
 
-		// mouse app area
-		var mouseBG = new AppAreaBG(
-			AppAreaBG.COLOR_MOUSE_APP, 1,
-			0, 60,
-			GAME_SCREEN_SIZE.x, 280
-		);
-		mouseBG.printText(
-			"마우스 연습 앱",
-			game.world.centerX, 200,
-			170, "#000", 0.03
-		);
-
-		// typing app area
-		var typingBG = new AppAreaBG(
-			AppAreaBG.COLOR_TYPING_APP, 1,
-			0, 340,
-			GAME_SCREEN_SIZE.x, 378
-		);
-		typingBG.printText(
-			"타 자  연 습 앱",
-			game.world.centerX, 490,
-			170, "#000", 0.03
-		);
-
-
 		// keyboard shortcut
 		this.keyboardShortcut = new KeyboardShortcut();
 		this.keyboardShortcut.addCallback(
@@ -41,6 +17,11 @@ var MainMenu = {
 			"menu_app"	// callerClassName
 		);
 
+		// bg
+		game.add.graphics()
+			.beginFill(MainColor.LIGHT_CHOCO_HEX, 1)
+			.drawRect(0, 0,GAME_SCREEN_SIZE.x, GAME_SCREEN_SIZE.y);
+
 		// top ui
 		// var screenTopUI = new ScreenTopUI();
 		// screenTopUI.makeBackButton( (function() { this.back(); }).bind(this) );
@@ -68,7 +49,6 @@ var MainMenu = {
 		this.loadAppData();
 	},
 
-
 	back: function() {
 		sessionStorageManager.clear();
 		location.href = '../../web/client/login.html';
diff --git a/src/web/client/main_menu.html b/src/web/client/main_menu.html
index 50b065b..4e17e81 100644
--- a/src/web/client/main_menu.html
+++ b/src/web/client/main_menu.html
@@ -38,6 +38,7 @@
 		<script src="../../game/lib/global/global_variables.js?update_date=191224"></script>
 
 		<!-- library source files -->
+		<script src="../../game/lib/color/main_color.js"></script>
 		<script src="../../game/lib/util/number_util.js"></script>
 
 		<script src="../../game/lib/text/input_type_text.js?update_date=191224"></script>
@@ -57,7 +58,6 @@
 		<script src="../../game/main_menu/main.js"></script>
 		<script src="../../game/main_menu/welcome_player_text.js"></script>
 		<script src="../../game/main_menu/notice_experience_player_text.js"></script>
-		<script src="../../game/main_menu/app_area_bg.js"></script>
 
 
 		<style>