diff --git a/Packages/vChewing_Shared/Sources/Shared/Protocols/PrefMgrProtocol.swift b/Packages/vChewing_Shared/Sources/Shared/Protocols/PrefMgrProtocol.swift
index 30981dd6..ed7bb2b9 100644
--- a/Packages/vChewing_Shared/Sources/Shared/Protocols/PrefMgrProtocol.swift
+++ b/Packages/vChewing_Shared/Sources/Shared/Protocols/PrefMgrProtocol.swift
@@ -44,7 +44,7 @@ public protocol PrefMgrProtocol {
   var clientsIMKTextInputIncapable: [String: Bool] { get set }
   var onlyLoadFactoryLangModelsIfNeeded: Bool { get set }
   var useIMKCandidateWindow: Bool { get set }
-  var handleDefaultCandidateFontsByLangIdentifier: Bool { get set }
+  var legacyCandidateViewTypesettingMethodEnabled: Bool { get set }
   var disableSegmentedThickUnderlineInMarkingModeForManagedClients: Bool { get set }
   var maxCandidateLength: Int { get set }
   var shouldNotFartInLieuOfBeep: Bool { get set }
diff --git a/Packages/vChewing_Shared/Sources/Shared/Shared.swift b/Packages/vChewing_Shared/Sources/Shared/Shared.swift
index 6214668c..87046666 100644
--- a/Packages/vChewing_Shared/Sources/Shared/Shared.swift
+++ b/Packages/vChewing_Shared/Sources/Shared/Shared.swift
@@ -72,7 +72,7 @@ public enum UserDef: String, CaseIterable {
   case kClassicHaninKeyboardSymbolModeShortcutEnabled = "ClassicHaninKeyboardSymbolModeShortcutEnabled"
 
   case kUseIMKCandidateWindow = "UseIMKCandidateWindow"
-  case kHandleDefaultCandidateFontsByLangIdentifier = "HandleDefaultCandidateFontsByLangIdentifier"
+  case kLegacyCandidateViewTypesettingMethodEnabled = "LegacyCandidateViewTypesettingMethodEnabled"
   case kDisableSegmentedThickUnderlineInMarkingModeForManagedClients
     = "DisableSegmentedThickUnderlineInMarkingModeForManagedClients"
 
diff --git a/Source/Modules/PrefMgr_Core.swift b/Source/Modules/PrefMgr_Core.swift
index 5ba2ee70..49ac08b0 100644
--- a/Source/Modules/PrefMgr_Core.swift
+++ b/Source/Modules/PrefMgr_Core.swift
@@ -179,8 +179,8 @@ public class PrefMgr: PrefMgrProtocol {
   @AppProperty(key: UserDef.kUseIMKCandidateWindow.rawValue, defaultValue: false)
   public var useIMKCandidateWindow: Bool
 
-  @AppProperty(key: UserDef.kHandleDefaultCandidateFontsByLangIdentifier.rawValue, defaultValue: false)
-  public var handleDefaultCandidateFontsByLangIdentifier: Bool
+  @AppProperty(key: UserDef.kLegacyCandidateViewTypesettingMethodEnabled.rawValue, defaultValue: false)
+  public var legacyCandidateViewTypesettingMethodEnabled: Bool
 
   @AppProperty(
     key: UserDef.kDisableSegmentedThickUnderlineInMarkingModeForManagedClients.rawValue,
diff --git a/Source/Modules/PrefMgr_Extension.swift b/Source/Modules/PrefMgr_Extension.swift
index c57ce9aa..6760bd84 100644
--- a/Source/Modules/PrefMgr_Extension.swift
+++ b/Source/Modules/PrefMgr_Extension.swift
@@ -15,7 +15,7 @@ public extension PrefMgr {
     // macOS 10.15 開始才能使用 SwiftUI 構建的田所選字窗。
     if #unavailable(macOS 10.15) {
       useIMKCandidateWindow = true
-      handleDefaultCandidateFontsByLangIdentifier = false
+      legacyCandidateViewTypesettingMethodEnabled = false
       togglingAlphanumericalModeWithRShift = false
       togglingAlphanumericalModeWithLShift = false
       showReverseLookupInCandidateUI = false
diff --git a/Source/Modules/SessionCtl_HandleDisplay.swift b/Source/Modules/SessionCtl_HandleDisplay.swift
index c6770549..2885b21d 100644
--- a/Source/Modules/SessionCtl_HandleDisplay.swift
+++ b/Source/Modules/SessionCtl_HandleDisplay.swift
@@ -111,7 +111,7 @@ public extension SessionCtl {
         isVerticalTyping ? "⇧" : NSLocalizedString("Hold ⇧ to choose associates.", comment: "")
     }
 
-    candidateUI?.useLangIdentifier = PrefMgr.shared.handleDefaultCandidateFontsByLangIdentifier
+    candidateUI?.useLangIdentifier = PrefMgr.shared.legacyCandidateViewTypesettingMethodEnabled
     candidateUI?.locale = {
       switch inputMode {
       case .imeModeCHS: return "zh-Hans"