From 66f8180006af41651e6c6ad08a01ae007240b198 Mon Sep 17 00:00:00 2001
From: Maurice Parker <mo@vincode.io>
Date: Mon, 27 Jul 2020 19:35:41 -0500
Subject: [PATCH] Make sure we are changing the user interface style on the
 main thread

---
 iOS/SceneDelegate.swift | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/iOS/SceneDelegate.swift b/iOS/SceneDelegate.swift
index 0a4ffdf80..ef66c3b9e 100644
--- a/iOS/SceneDelegate.swift
+++ b/iOS/SceneDelegate.swift
@@ -111,13 +111,15 @@ private extension SceneDelegate {
 	}
 	
 	func updateUserInterfaceStyle() {
-		switch AppDefaults.userInterfaceColorPalette {
-		case .automatic:
-			window!.overrideUserInterfaceStyle = .unspecified
-		case .light:
-			window!.overrideUserInterfaceStyle = .light
-		case .dark:
-			window!.overrideUserInterfaceStyle = .dark
+		DispatchQueue.main.async {
+			switch AppDefaults.userInterfaceColorPalette {
+			case .automatic:
+				self.window!.overrideUserInterfaceStyle = .unspecified
+			case .light:
+				self.window!.overrideUserInterfaceStyle = .light
+			case .dark:
+				self.window!.overrideUserInterfaceStyle = .dark
+			}
 		}
 	}