fix(fabric): Switch default Text color to labelColor

Author: Saadnajmi

packages/react-native/Libraries/Text/RCTTextAttributes.mm

@@ -277,7 +277,7 @@ - (CGFloat)effectiveFontSizeMultiplier
 
 - (RCTPlatformColor *)effectiveForegroundColor // [macOS]
 {
-  RCTPlatformColor *effectiveForegroundColor = _foregroundColor ?: [RCTPlatformColor blackColor]; // [macOS]
+  RCTPlatformColor *effectiveForegroundColor = _foregroundColor ?: [RCTTextAttributes defaultForegroundColor]; // [macOS]
 
   if (!isnan(_opacity)) {
     effectiveForegroundColor =

packages/react-native/Libraries/Text/TextInput/Multiline/RCTUITextView.mm

@@ -69,7 +69,7 @@ - (instancetype)initWithFrame:(CGRect)frame
     _textInputDelegateAdapter = [[RCTBackedTextViewDelegateAdapter alloc] initWithTextView:self];
 
     self.backgroundColor = [RCTPlatformColor clearColor]; // [macOS]
-    self.textColor = [RCTPlatformColor blackColor]; // [macOS]
+    self.textColor = [RCTPlatformColor labelColor]; // [macOS]
     // This line actually removes 5pt (default value) left and right padding in UITextView.
 #if !TARGET_OS_OSX // [macOS]
     self.textContainer.lineFragmentPadding = 0;

packages/react-native/Libraries/Text/TextInput/RCTBaseTextInputView.mm

@@ -127,7 +127,7 @@ - (void)enforceTextAttributesIfNeeded
 
   NSDictionary<NSAttributedStringKey, id> *textAttributes = [[_textAttributes effectiveTextAttributes] mutableCopy];
   if ([textAttributes valueForKey:NSForegroundColorAttributeName] == nil) {
-    [textAttributes setValue:[RCTPlatformColor blackColor] forKey:NSForegroundColorAttributeName]; // [macOS]
+    [textAttributes setValue:[RCTPlatformColor labelColor] forKey:NSForegroundColorAttributeName]; // [macOS]
   }
 
     backedTextInputView.defaultTextAttributes = textAttributes;

packages/react-native/ReactCommon/react/renderer/attributedstring/TextAttributes.cpp

@@ -178,7 +178,10 @@ TextAttributes TextAttributes::defaultTextAttributes() {
   static auto textAttributes = [] {
     auto textAttributes = TextAttributes{};
     // Non-obvious (can be different among platforms) default text attributes.
-    textAttributes.foregroundColor = blackColor();
+    // [macOS textAttributes.foregroundColor = blackColor();
+    // Leave foregroundColor unset so each platform can apply a dynamic default
+    // (e.g. labelColor) that adapts to light/dark mode.
+    // macOS]
     textAttributes.backgroundColor = clearColor();
     textAttributes.fontSize = 14.0;
     textAttributes.fontSizeMultiplier = 1.0;

packages/react-native/ReactCommon/react/renderer/textlayoutmanager/platform/ios/react/renderer/textlayoutmanager/RCTAttributedTextUtils.mm

@@ -144,7 +144,7 @@ inline static CGFloat RCTEffectiveFontSizeMultiplierFromTextAttributes(const Tex
 
 inline static RCTPlatformColor *RCTEffectiveForegroundColorFromTextAttributes(const TextAttributes &textAttributes) // [macOS]
 {
-  RCTPlatformColor *effectiveForegroundColor = RCTUIColorFromSharedColor(textAttributes.foregroundColor) ? RCTUIColorFromSharedColor(textAttributes.foregroundColor) : [RCTPlatformColor blackColor]; // [macOS]
+  RCTPlatformColor *effectiveForegroundColor = RCTUIColorFromSharedColor(textAttributes.foregroundColor) ?: [RCTPlatformColor labelColor]; // [macOS]
 
   if (!isnan(textAttributes.opacity)) {
     effectiveForegroundColor = [effectiveForegroundColor
@@ -182,6 +182,9 @@ inline static CGFloat RCTEffectiveFontSizeMultiplierFromTextAttributes(const Tex
 
   if (textAttributes.foregroundColor || !isnan(textAttributes.opacity)) {
     attributes[NSForegroundColorAttributeName] = effectiveForegroundColor;
+  } else {
+    // [macOS] Apply dynamic default (labelColor) so text adapts to dark mode
+    attributes[NSForegroundColorAttributeName] = effectiveForegroundColor;
   }
 
   if (textAttributes.backgroundColor || !isnan(textAttributes.opacity)) {