From 1730062c8f48834312f5766f16d63045a3506182 Mon Sep 17 00:00:00 2001
From: Calvin <clavin@users.noreply.github.com>
Date: Mon, 31 Mar 2025 17:12:35 -0600
Subject: [PATCH] fix: flicker and ghosting in transparent windows on macOS
 (#46353)

* fix: transparent flicker on MAS

* Gate condition on `IsTranslucent` instead
---
 shell/browser/native_window_mac.mm | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/shell/browser/native_window_mac.mm b/shell/browser/native_window_mac.mm
index 37ff7da6d625..dbeceb836ea7 100644
--- a/shell/browser/native_window_mac.mm
+++ b/shell/browser/native_window_mac.mm
@@ -196,6 +196,9 @@ NativeWindowMac::NativeWindowMac(const gin_helper::Dictionary& options,
   params.type = views::Widget::InitParams::TYPE_WINDOW;
   // Allow painting before shown, to be later disabled in ElectronNSWindow.
   params.headless_mode = true;
+  if (IsTranslucent()) {
+    params.opacity = views::Widget::InitParams::WindowOpacity::kTranslucent;
+  }
   params.native_widget =
       new ElectronNativeWidgetMac(this, windowType, styleMask, widget());
   widget()->Init(std::move(params));