diff --git a/designer_base/src/com/fr/design/constants/UIConstants.java b/designer_base/src/com/fr/design/constants/UIConstants.java
index 3945e756fb..5332ce13dc 100644
--- a/designer_base/src/com/fr/design/constants/UIConstants.java
+++ b/designer_base/src/com/fr/design/constants/UIConstants.java
@@ -153,7 +153,7 @@ public interface UIConstants {
     public static final Color BARNOMAL = new Color(232, 232, 233);
     public static final Color COMPONENT_BACKGROUND_COLOR = new Color(237,237,238);
     public static final int ARC = 0;
-    public static final int BUTTON_GROUP_ARC = 6;
+    public static final int BUTTON_GROUP_ARC = 0;
     public static final int LARGEARC = 6;
     public static final Stroke BS = new BasicStroke(1f, BasicStroke.CAP_BUTT, BasicStroke.JOIN_ROUND, 2f, new float[]{3, 1}, 0);
     public static final Icon PREVIEW_DOWN = BaseUtils.readIcon("com/fr/design/images/buttonicon/prevew_down_icon.png");
diff --git a/designer_base/src/com/fr/design/gui/ibutton/UIButtonGroup.java b/designer_base/src/com/fr/design/gui/ibutton/UIButtonGroup.java
index a44dde7258..ddd9d4494a 100644
--- a/designer_base/src/com/fr/design/gui/ibutton/UIButtonGroup.java
+++ b/designer_base/src/com/fr/design/gui/ibutton/UIButtonGroup.java
@@ -153,14 +153,13 @@ public class UIButtonGroup<T> extends JPanel implements GlobalNameObserver {
     }
 
     protected void initButton(UIToggleButton labelButton) {
-        labelButton.setRoundBorder(true);
         labelButton.setBorderPainted(false);
         labelButtonList.add(labelButton);
         this.add(labelButton);
     }
 
     protected Border getGroupBorder() {
-        return BorderFactory.createEmptyBorder(1, 1, 1, 1);
+        return BorderFactory.createEmptyBorder(0, 0, 0, 0);
     }
 
     protected LayoutManager getGridLayout(int number) {