From fbf91f0432121eceaebe3b484a9dddb871fb5bf6 Mon Sep 17 00:00:00 2001
From: Dennis Ushakov <dennis.ushakov@gmail.com>
Date: Mon, 5 Oct 2015 18:43:25 +0300
Subject: [PATCH] proper default when alphaProperty is empty

---
 platform/util/src/com/intellij/ui/mac/foundation/MacUtil.java | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/platform/util/src/com/intellij/ui/mac/foundation/MacUtil.java b/platform/util/src/com/intellij/ui/mac/foundation/MacUtil.java
index 1620381aad25..7e5987f3f573 100644
--- a/platform/util/src/com/intellij/ui/mac/foundation/MacUtil.java
+++ b/platform/util/src/com/intellij/ui/mac/foundation/MacUtil.java
@@ -223,10 +223,11 @@ public class MacUtil {
     final long green = invoke(colorInSpace, "greenComponent").longValue();
     final long blue = invoke(colorInSpace, "blueComponent").longValue();
     final long alpha = invoke(colorInSpace, "alphaComponent").longValue();
+    final double realAlpha = alpha != 0 && (int)((alpha >> 52) & 0x7ffL) == 0 ? 1.0 : Double.longBitsToDouble(alpha);
     //noinspection UseJBColor
     return new Color((float)Double.longBitsToDouble(red),
                      (float)Double.longBitsToDouble(green),
                      (float)Double.longBitsToDouble(blue),
-                     (float)Double.longBitsToDouble(alpha));
+                     (float)realAlpha);
   }
 }