From c8cede080f174514f89357f0bc05db3bf8e328ff Mon Sep 17 00:00:00 2001
From: Dan Walmsley <dan@walms.co.uk>
Date: Tue, 23 Jun 2020 18:32:08 -0300
Subject: [PATCH] fix hiding and showing traffic lights.

---
 native/Avalonia.Native/src/OSX/window.mm | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/native/Avalonia.Native/src/OSX/window.mm b/native/Avalonia.Native/src/OSX/window.mm
index 551c5afea9..269d71a25a 100644
--- a/native/Avalonia.Native/src/OSX/window.mm
+++ b/native/Avalonia.Native/src/OSX/window.mm
@@ -511,7 +511,9 @@ private:
                     {
                         if(_isClientAreaExtended)
                         {
-                            [button setHidden: !((_extendClientHints & AvnSystemChrome)) || (_extendClientHints & AvnPreferSystemChrome)];
+                            auto wantsChrome = (_extendClientHints & AvnSystemChrome) || (_extendClientHints & AvnPreferSystemChrome);
+                            
+                            [button setHidden: !wantsChrome];
                         }
                         else
                         {