diff --git a/src/main/java/info/istlab/Zemi01/RectangleFrame.java b/src/main/java/info/istlab/Zemi01/RectangleFrame.java
index d70beec..0275eb1 100644
--- a/src/main/java/info/istlab/Zemi01/RectangleFrame.java
+++ b/src/main/java/info/istlab/Zemi01/RectangleFrame.java
@@ -24,7 +24,8 @@
                 rf.setVisible(true);
 
                 JPopupMenu menu = new JPopupMenu();
-                menu.add("cancel");
+                JMenuItem cancelMI = new JMenuItem("(close menu)"); //なにもしないメニュー。メニューを閉じるためのメニュー
+                menu.add(cancelMI);
                 menu.addSeparator();
                 JMenuItem captureMI = new JMenuItem("capture");
                 captureMI.addActionListener(e -> ScreenCapture.capture(rf.getInnerRect(), System.getProperty("user.dir") ));
@@ -89,12 +90,16 @@
 
         for (int i = 0; i < 4; i++) {
             rects[i] = new TransparentRect(this);
+            // rects[i].setFocusableWindowState(true);
         }
         layout();
     }
 
     public void registerPopupMenu(JPopupMenu pM) {
         popupMenu = pM;
+        // for (int i = 0; i < 4; i++) {
+        //     rects[i].addKeyListener( new EscapeCloseKeyListener(popupMenu));
+        // }
     }
 
     public void layout() {
@@ -106,8 +111,9 @@
         rects[2].setSize(frameWidth, height - frameWidth * 2);
         rects[3].setLocation(location.x, location.y + height - frameWidth);
         rects[3].setSize(width, frameWidth);
-        for (int i = 0; i < 4; i++)
+        for (int i = 0; i < 4; i++){
             rects[i].toFront();
+        }
     }
 
     public void setLocation(int px, int py) {
@@ -160,6 +166,7 @@
         if (e.getButton() == MouseEvent.BUTTON3) {
             if (popupMenu != null) {
                 popupMenu.show(e.getComponent(), e.getX(), e.getY());
+                // e.getComponent().requestFocus();
             } // System.exit(0);
         }
         if (e.getComponent() == rects[3] &&
@@ -167,6 +174,7 @@
             resizeMode = true;
             dim = new Dimension(width, height);
         }
+        // e.getComponent().requestFocusInWindow();
     }
 
     @Override
@@ -177,7 +185,7 @@
 
     @Override
     public void mouseEntered(MouseEvent e) {
-        setBackground(new Color(0, 0, 0, 50));
+        setBackground(new Color(0, 0, 0, 80));
         if (e.getComponent() == rects[3] &&
                 e.getPoint().x > rects[3].getWidth() - frameWidth) {
             rects[3].setCursor(new Cursor(Cursor.SE_RESIZE_CURSOR));
@@ -189,17 +197,41 @@
 
     @Override
     public void mouseExited(MouseEvent e) {
-        setBackground(new Color(0, 0, 0, 10));
+        setBackground(new Color(0, 0, 0, 30));
         e.getComponent().setCursor(new Cursor(Cursor.DEFAULT_CURSOR));
     }
 
 }
 
+/**
+ * 半透明の部品
+ * 
+ * 0000000000000000000000000
+ * 11                     22
+ * 11                     22
+ * 11                     22
+ * 11                     22
+ * 3333333333333333333333333
+ * 
+ */
 class TransparentRect extends JWindow {
     public TransparentRect(RectangleFrame parent) {
-        setBackground(new Color(0, 0, 0, 10));
+        setBackground(new Color(0, 0, 0, 30));
         addMouseListener(parent);
         addMouseMotionListener(parent);
     }
 
 }
+
+// class EscapeCloseKeyListener extends KeyAdapter {
+//     JPopupMenu target;
+//     public EscapeCloseKeyListener(JPopupMenu t){
+//         target = t;
+//     }
+//     public void keyPressed(KeyEvent e){
+//         System.out.println(e.getKeyCode());
+//         if (e.getKeyCode() == KeyEvent.VK_ESCAPE){
+//             target.setVisible(false);
+//         }
+//     }
+// }