diff --git a/study/RoundRectButton/round_rect_button.js b/src/game/lib/js/round_rect_button.js
similarity index 96%
rename from study/RoundRectButton/round_rect_button.js
rename to src/game/lib/js/round_rect_button.js
index 8b25099..67067ba 100644
--- a/study/RoundRectButton/round_rect_button.js
+++ b/src/game/lib/js/round_rect_button.js
@@ -39,6 +39,7 @@ RoundRectButtonSetting.DEFAULT_TEXT_FONT = {
 };
 
 RoundRectButtonSetting.DEFAULT_LINE_SPACING = -10;  // pixels
+RoundRectButtonSetting.WHITE = 0xffffff;
 
 
 
@@ -83,7 +84,7 @@ class RoundRectButton {
 
   makeSprite() {
     let btnTexture = new Phaser.Graphics()
-      .beginFill(RoundRectButton.white)
+      .beginFill(RoundRectButtonSetting.WHITE)
       .drawRoundedRect(0, 0, this.setting.width, this.setting.height, this.setting.roundAmount)
       .endFill()
       .generateTexture();
@@ -146,5 +147,3 @@ class RoundRectButton {
   }
 }
 
-RoundRectButton.defaultRoundAmount = 10;
-RoundRectButton.white = 0xffffff;
diff --git a/study/RoundRectButton/phaser3-logo.png b/study/Phaser3/phaser3-logo.png
similarity index 100%
rename from study/RoundRectButton/phaser3-logo.png
rename to study/Phaser3/phaser3-logo.png
diff --git a/study/RoundRectButton/phaser_sample.html b/study/Phaser3/phaser_sample.html
similarity index 100%
rename from study/RoundRectButton/phaser_sample.html
rename to study/Phaser3/phaser_sample.html
diff --git a/study/RoundRectButton/phaser_sample_main.js b/study/Phaser3/phaser_sample_main.js
similarity index 100%
rename from study/RoundRectButton/phaser_sample_main.js
rename to study/Phaser3/phaser_sample_main.js
diff --git a/study/RoundRectButton/red.png b/study/Phaser3/red.png
similarity index 100%
rename from study/RoundRectButton/red.png
rename to study/Phaser3/red.png
diff --git a/study/RoundRectButton/space3.png b/study/Phaser3/space3.png
similarity index 100%
rename from study/RoundRectButton/space3.png
rename to study/Phaser3/space3.png
diff --git a/study/RoundRectButton/round_rect_button.html b/study/RoundRectButton/round_rect_button.html
index 1dbfdfb..304d7e2 100644
--- a/study/RoundRectButton/round_rect_button.html
+++ b/study/RoundRectButton/round_rect_button.html
@@ -19,13 +19,13 @@
 		<script src="//code.jquery.com/jquery-1.11.0.min.js"></script>
 		<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js"></script>
 		-->
-		
+
 		<script src="https://cdnjs.cloudflare.com/ajax/libs/phaser/2.6.2/phaser.js"></script>
 		
 		<!-- <script src="../../resources/js/phaser.min.js"></script> -->
 		
 
-		<script src="./round_rect_button.js"></script>
+		<script src="../../src/game/lib/js/round_rect_button.js"></script>
 		<script src="./round_rect_button_main.js"></script>
 	</head>