From 7d63235086352d8c424d634c7039551f0a5025dc Mon Sep 17 00:00:00 2001
From: Santiago <37671738+sangonz193@users.noreply.github.com>
Date: Thu, 21 Nov 2024 04:43:46 -0800
Subject: [PATCH] Fix Appearance.setColorScheme(null) not resetting color
 scheme value (#47739)

Summary:
Fixes https://github.com/facebook/react-native/issues/47725

Calling Appearance.setColorScheme(null) or Appearance.setColorScheme(undefined) no longer resets the color scheme useColorScheme returns like on previous rn versions.

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[GENERAL] [FIXED] - Fix `Appearance.setColorScheme(null)` not resetting color scheme value

Pull Request resolved: https://github.com/facebook/react-native/pull/47739

Test Plan: Repo with a patch ready to test: https://github.com/sangonz193/react-native-color-scheme-patch

Reviewed By: yungsters

Differential Revision: D66230236

Pulled By: cipolleschi

fbshipit-source-id: cc668acb1fde6d30f2706fc0ab7dee5cea1c3b14
---
 packages/react-native/Libraries/Utilities/Appearance.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/packages/react-native/Libraries/Utilities/Appearance.js b/packages/react-native/Libraries/Utilities/Appearance.js
index 3cd23a65fe2245..d96047b1dda5f2 100644
--- a/packages/react-native/Libraries/Utilities/Appearance.js
+++ b/packages/react-native/Libraries/Utilities/Appearance.js
@@ -105,7 +105,9 @@ export function setColorScheme(colorScheme: ?ColorSchemeName): void {
   const {NativeAppearance} = state;
   if (NativeAppearance != null) {
     NativeAppearance.setColorScheme(colorScheme ?? 'unspecified');
-    state.appearance = {colorScheme};
+    state.appearance = {
+      colorScheme: toColorScheme(NativeAppearance.getColorScheme()),
+    };
   }
 }