diff --git a/Packages/vChewing_CandidateWindow/Sources/CandidateWindow/TDKCandidates/CtlCandidateTDK.swift b/Packages/vChewing_CandidateWindow/Sources/CandidateWindow/TDKCandidates/CtlCandidateTDK.swift
index 6a0f85ac..829b0ba0 100644
--- a/Packages/vChewing_CandidateWindow/Sources/CandidateWindow/TDKCandidates/CtlCandidateTDK.swift
+++ b/Packages/vChewing_CandidateWindow/Sources/CandidateWindow/TDKCandidates/CtlCandidateTDK.swift
@@ -63,7 +63,6 @@ public class CtlCandidateTDK: CtlCandidate {
     panel.hasShadow = true
     panel.isOpaque = false
     panel.backgroundColor = NSColor.clear
-
     contentRect.origin = NSPoint.zero
 
     super.init(layout)
@@ -104,33 +103,34 @@ public class CtlCandidateTDK: CtlCandidate {
   }
 
   override open func updateDisplay() {
+    guard let window = window else { return }
     switch currentLayout {
       case .horizontal:
         DispatchQueue.main.async { [self] in
           if #available(macOS 12, *) {
-            let newView = NSHostingView(rootView: theViewHorizontal)
+            let newView = NSHostingView(rootView: theViewHorizontal.edgesIgnoringSafeArea(.top))
             let newSize = newView.fittingSize
-            window?.contentView = newView
-            window?.setContentSize(newSize)
+            window.contentView = newView
+            window.setContentSize(newSize)
           } else {
-            let newView = NSHostingView(rootView: theViewHorizontalBackports)
+            let newView = NSHostingView(rootView: theViewHorizontalBackports.edgesIgnoringSafeArea(.top))
             let newSize = newView.fittingSize
-            window?.contentView = newView
-            window?.setContentSize(newSize)
+            window.contentView = newView
+            window.setContentSize(newSize)
           }
         }
       case .vertical:
         DispatchQueue.main.async { [self] in
           if #available(macOS 12, *) {
-            let newView = NSHostingView(rootView: theViewVertical)
+            let newView = NSHostingView(rootView: theViewVertical.edgesIgnoringSafeArea(.top))
             let newSize = newView.fittingSize
-            window?.contentView = newView
-            window?.setContentSize(newSize)
+            window.contentView = newView
+            window.setContentSize(newSize)
           } else {
-            let newView = NSHostingView(rootView: theViewVerticalBackports)
+            let newView = NSHostingView(rootView: theViewVerticalBackports.edgesIgnoringSafeArea(.top))
             let newSize = newView.fittingSize
-            window?.contentView = newView
-            window?.setContentSize(newSize)
+            window.contentView = newView
+            window.setContentSize(newSize)
           }
         }
       @unknown default:
diff --git a/Packages/vChewing_CandidateWindow/Sources/CandidateWindow/TDKCandidates/VwrCandidateHorizontal.swift b/Packages/vChewing_CandidateWindow/Sources/CandidateWindow/TDKCandidates/VwrCandidateHorizontal.swift
index cfbdda1e..7c2976f1 100644
--- a/Packages/vChewing_CandidateWindow/Sources/CandidateWindow/TDKCandidates/VwrCandidateHorizontal.swift
+++ b/Packages/vChewing_CandidateWindow/Sources/CandidateWindow/TDKCandidates/VwrCandidateHorizontal.swift
@@ -100,11 +100,13 @@ public struct VwrCandidateHorizontal: View {
             .lineLimit(
               1)
         }
-        .padding(6).foregroundColor(
+        .padding(7).foregroundColor(
           .init(nsColor: tooltip.isEmpty ? .controlTextColor : .selectedMenuItemTextColor.withAlphaComponent(0.9))
         )
       }
+      .fixedSize(horizontal: false, vertical: true)
     }
     .frame(minWidth: thePool.maxWindowWidth, maxWidth: thePool.maxWindowWidth)
+    .cornerRadius(10)
   }
 }
diff --git a/Packages/vChewing_CandidateWindow/Sources/CandidateWindow/TDKCandidates/VwrCandidateVertical.swift b/Packages/vChewing_CandidateWindow/Sources/CandidateWindow/TDKCandidates/VwrCandidateVertical.swift
index 46f6ec4b..87949c8c 100644
--- a/Packages/vChewing_CandidateWindow/Sources/CandidateWindow/TDKCandidates/VwrCandidateVertical.swift
+++ b/Packages/vChewing_CandidateWindow/Sources/CandidateWindow/TDKCandidates/VwrCandidateVertical.swift
@@ -105,10 +105,11 @@ public struct VwrCandidateVertical: View {
             .lineLimit(
               1)
         }
-        .padding(6).foregroundColor(
+        .padding(7).foregroundColor(
           .init(nsColor: tooltip.isEmpty ? .controlTextColor : .selectedMenuItemTextColor.withAlphaComponent(0.9))
         )
       }
     }
+    .cornerRadius(10)
   }
 }
diff --git a/Packages/vChewing_CandidateWindow/Sources/CandidateWindow/TDKCandidates_Backports/VwrCandidateHorizontalBackports.swift b/Packages/vChewing_CandidateWindow/Sources/CandidateWindow/TDKCandidates_Backports/VwrCandidateHorizontalBackports.swift
index efedab54..8b70b578 100644
--- a/Packages/vChewing_CandidateWindow/Sources/CandidateWindow/TDKCandidates_Backports/VwrCandidateHorizontalBackports.swift
+++ b/Packages/vChewing_CandidateWindow/Sources/CandidateWindow/TDKCandidates_Backports/VwrCandidateHorizontalBackports.swift
@@ -105,11 +105,13 @@ public struct VwrCandidateHorizontalBackports: View {
             .lineLimit(
               1)
         }
-        .padding(6).foregroundColor(
+        .padding(7).foregroundColor(
           tooltip.isEmpty && colorScheme == .light ? Color(white: 0.1) : Color(white: 0.9)
         )
       }
+      .fixedSize(horizontal: false, vertical: true)
     }
     .frame(minWidth: thePool.maxWindowWidth, maxWidth: thePool.maxWindowWidth)
+    .cornerRadius(10)
   }
 }
diff --git a/Packages/vChewing_CandidateWindow/Sources/CandidateWindow/TDKCandidates_Backports/VwrCandidateVerticalBackports.swift b/Packages/vChewing_CandidateWindow/Sources/CandidateWindow/TDKCandidates_Backports/VwrCandidateVerticalBackports.swift
index 30ea03e7..0b30fa87 100644
--- a/Packages/vChewing_CandidateWindow/Sources/CandidateWindow/TDKCandidates_Backports/VwrCandidateVerticalBackports.swift
+++ b/Packages/vChewing_CandidateWindow/Sources/CandidateWindow/TDKCandidates_Backports/VwrCandidateVerticalBackports.swift
@@ -110,10 +110,11 @@ public struct VwrCandidateVerticalBackports: View {
             .lineLimit(
               1)
         }
-        .padding(6).foregroundColor(
+        .padding(7).foregroundColor(
           tooltip.isEmpty && colorScheme == .light ? Color(white: 0.1) : Color(white: 0.9)
         )
       }
     }
+    .cornerRadius(10)
   }
 }