diff --git a/src/game/lib/back_button.js b/src/game/lib/back_button.js
index a67ce3e..1f8d400 100644
--- a/src/game/lib/back_button.js
+++ b/src/game/lib/back_button.js
@@ -4,22 +4,23 @@ class BackButton {
 		let setting = new RoundRectButtonSetting(50, 50);
 		setting.fontStyle.boundsAlignH = "center";	// left, center. right
 		setting.fontStyle.boundsAlignV = "middle";	// top, middle, bottom
+		setting.strokeWidthPx = 3;
 		setting.setStrokeColor(
+			0xaa6666,
+			0x884444,
 			0x884444,
-			0xaa6666,
-			0xaa6666,
 			0x333333
 		);
 		setting.setButtonColor(
+			0xffdddd,
+			0xddaaaa,
 			0xddaaaa,
-			0xffdddd,
-			0xffdddd,
 			0x666666
 		);
 		setting.setTextColor(
+			"#a66",
+			"#844",
 			"#844",
-			"#a66",
-			"#a66",
 			"#333"
 		);
 
diff --git a/src/game/lib/fullscreen_button.js b/src/game/lib/fullscreen_button.js
index d0934c5..e55a990 100644
--- a/src/game/lib/fullscreen_button.js
+++ b/src/game/lib/fullscreen_button.js
@@ -8,16 +8,17 @@ class FullscreenButton {
 		let setting = new RoundRectButtonSetting(50, 50);
 		setting.fontStyle.boundsAlignH = "center";	// left, center. right
 		setting.fontStyle.boundsAlignV = "middle";	// top, middle, bottom
+		setting.strokeWidthPx = 3;
 		setting.setStrokeColor(
-			0x884444,
-			0xaa6666,
-			0xaa6666,
+			0x444488,
+			0x6666aa,
+			0x6666aa,
 			0x333333
 		);
 		setting.setButtonColor(
-			0xddaaaa,
-			0xffdddd,
-			0xffdddd,
+			0xaaaadd,
+			0xddddff,
+			0xddddff,
 			0x666666
 		);
 		setting.setTextColor(
diff --git a/src/game/lib/round_rect_button.js b/src/game/lib/round_rect_button.js
index 1200914..eda4a1a 100644
--- a/src/game/lib/round_rect_button.js
+++ b/src/game/lib/round_rect_button.js
@@ -10,7 +10,7 @@ class RoundRectButtonSetting {
 		} else {
 			this.roundAmount = roundAmount;
 		}
-		this.strokeWidth = RoundRectButtonSetting.DEFAULT_STROKE_WIDTH_PX;
+		this.strokeWidthPx = RoundRectButtonSetting.DEFAULT_STROKE_WIDTH_PX;
 
 
 		this.strokeColors = RoundRectButtonSetting.DEFAULT_STROKE_COLORS;
@@ -20,6 +20,7 @@ class RoundRectButtonSetting {
 	};
 
 	setStrokeColor(out, over, down, disabled) {
+		this.strokeColors = { };
 		this.strokeColors.out = out;
 		this.strokeColors.over = over;
 		this.strokeColors.odownut = down;
@@ -27,6 +28,7 @@ class RoundRectButtonSetting {
 	}
 
 	setButtonColor(out, over, down, disabled) {
+		this.buttonColors = { };
 		this.buttonColors.out = out;
 		this.buttonColors.over = over;
 		this.buttonColors.odownut = down;
@@ -34,6 +36,7 @@ class RoundRectButtonSetting {
 	}
 
 	setTextColor(out, over, down, disabled) {
+		this.textColors = { };
 		this.textColors.out = out;
 		this.textColors.over = over;
 		this.textColors.odownut = down;
@@ -120,13 +123,13 @@ class RoundRectButton {
 	}
 
 	makeButtonSprite() {
-		let width = this.setting.width - this.setting.strokeWidth * 2;
-		let height = this.setting.height - this.setting.strokeWidth * 2;
+		let width = this.setting.width - this.setting.strokeWidthPx * 2;
+		let height = this.setting.height - this.setting.strokeWidthPx * 2;
 		let innerRoundAmount = this.setting.roundAmount * (width / this.setting.width);
 
 		let btnTexture = new Phaser.Graphics()
 			.beginFill(0xffffff)
-			.drawRoundedRect(this.setting.strokeWidth, this.setting.strokeWidth, width, height, innerRoundAmount)
+			.drawRoundedRect(this.setting.strokeWidthPx, this.setting.strokeWidthPx, width, height, innerRoundAmount)
 			.endFill()
 			.generateTexture();
 
@@ -134,8 +137,8 @@ class RoundRectButton {
 	}
 
 	makeText(textContent) {
-		let width = this.setting.width - this.setting.strokeWidth * 2;
-		let height = this.setting.height - this.setting.strokeWidth * 2;
+		let width = this.setting.width - this.setting.strokeWidthPx * 2;
+		let height = this.setting.height - this.setting.strokeWidthPx * 2;
 
 		let btnText = game.add.text(0, 0, textContent, this.setting.fontStyle)
 			.setTextBounds(0, 0, width, this.setting.height);
@@ -198,8 +201,8 @@ class RoundRectButton {
 		this.buttonStroke.x = x - this.setting.width / 2;
 		this.buttonStroke.y = y - this.setting.height / 2;
 
-		this.button.x = x  - this.setting.width / 2+ this.setting.strokeWidth;
-		this.button.y = y  - this.setting.height / 2+ this.setting.strokeWidth;
+		this.button.x = x  - this.setting.width / 2+ this.setting.strokeWidthPx;
+		this.button.y = y  - this.setting.height / 2+ this.setting.strokeWidthPx;
 	}
 
 	get inputEnabled() {
diff --git a/src/game/login/login.js b/src/game/login/login.js
index 61ccc0b..f0e93b7 100644
--- a/src/game/login/login.js
+++ b/src/game/login/login.js
@@ -16,7 +16,6 @@ let Login = {
 		// game.stage.backgroundColor = '#4d4d4d';
 
 		this.makeInputTypeTexts();
-
 		this.makeButton();
 	},
 
@@ -71,11 +70,6 @@ let Login = {
 
 		let startButton = new RoundRectButton(setting, "시작", this.startMenu);
 		startButton.move(game.world.centerX, game.world.centerY + 140);
-
-		icon_fullscreen = game.add.sprite(0, 0, 'icon_fullscreen');
-		icon_fullscreen.width = 20;
-		icon_fullscreen.height = 20;
-		startButton.setIcon(icon_fullscreen);
 	},
 
 	startMenu: function() {