From 2316309d4d75a73aa88a841d22a3abe12edaab8a Mon Sep 17 00:00:00 2001
From: ShikiSuen <shikisuen@outlook.com>
Date: Thu, 18 Aug 2022 14:40:59 +0800
Subject: [PATCH] ctlCandUniv // Ensure color palettes on macOS 10.13 and
 earlier.

---
 .../UIModules/CandidateUI/ctlCandidateUniversal.swift       | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/Source/Modules/UIModules/CandidateUI/ctlCandidateUniversal.swift b/Source/Modules/UIModules/CandidateUI/ctlCandidateUniversal.swift
index 8acc32dc..60008b83 100644
--- a/Source/Modules/UIModules/CandidateUI/ctlCandidateUniversal.swift
+++ b/Source/Modules/UIModules/CandidateUI/ctlCandidateUniversal.swift
@@ -168,7 +168,11 @@ private class vwrCandidateUniversal: NSView {
         result = NSColor.systemBlue
       default: break
     }
-    let blendingAgainstTarget: NSColor = IME.isDarkMode ? NSColor.black : NSColor.white
+    var blendingAgainstTarget: NSColor = IME.isDarkMode ? NSColor.black : NSColor.white
+    if #unavailable(macOS 10.14) {
+      colorBlendAmount = 0.3
+      blendingAgainstTarget = NSColor.white
+    }
     return result.blended(withFraction: colorBlendAmount, of: blendingAgainstTarget)!
   }