diff --git a/Packages/vChewing_CandidateWindow/Sources/CandidateWindow/TDKCandidates_Backports/VwrCandidateHorizontalBackports.swift b/Packages/vChewing_CandidateWindow/Sources/CandidateWindow/TDKCandidates_Backports/VwrCandidateHorizontalBackports.swift
index 9a3924d9..a5c7e2bd 100644
--- a/Packages/vChewing_CandidateWindow/Sources/CandidateWindow/TDKCandidates_Backports/VwrCandidateHorizontalBackports.swift
+++ b/Packages/vChewing_CandidateWindow/Sources/CandidateWindow/TDKCandidates_Backports/VwrCandidateHorizontalBackports.swift
@@ -96,6 +96,7 @@ public struct VwrCandidateHorizontalBackports: View {
         if tooltip.isEmpty {
           Color(white: colorScheme == .dark ? 0.2 : 0.9)
         } else {
+          Color(white: colorScheme == .dark ? 0.0 : 1)
           controller.highlightedColorUIBackports
         }
         HStack(alignment: .bottom) {
diff --git a/Packages/vChewing_CandidateWindow/Sources/CandidateWindow/TDKCandidates_Backports/VwrCandidateVerticalBackports.swift b/Packages/vChewing_CandidateWindow/Sources/CandidateWindow/TDKCandidates_Backports/VwrCandidateVerticalBackports.swift
index bd1a7aba..b2575326 100644
--- a/Packages/vChewing_CandidateWindow/Sources/CandidateWindow/TDKCandidates_Backports/VwrCandidateVerticalBackports.swift
+++ b/Packages/vChewing_CandidateWindow/Sources/CandidateWindow/TDKCandidates_Backports/VwrCandidateVerticalBackports.swift
@@ -101,6 +101,7 @@ public struct VwrCandidateVerticalBackports: View {
         if tooltip.isEmpty {
           Color(white: colorScheme == .dark ? 0.2 : 0.9)
         } else {
+          Color(white: colorScheme == .dark ? 0.0 : 1)
           controller.highlightedColorUIBackports
         }
         HStack(alignment: .bottom) {