diff --git a/node_modules/@react-navigation/native-stack/lib/module/views/useHeaderConfigProps.js b/node_modules/@react-navigation/native-stack/lib/module/views/useHeaderConfigProps.js
index a42477a..3ff714c 100644
--- a/node_modules/@react-navigation/native-stack/lib/module/views/useHeaderConfigProps.js
+++ b/node_modules/@react-navigation/native-stack/lib/module/views/useHeaderConfigProps.js
@@ -159,7 +159,8 @@ export function useHeaderConfigProps({
   route,
   title,
   unstable_headerLeftItems: headerLeftItems,
-  unstable_headerRightItems: headerRightItems
+  unstable_headerRightItems: headerRightItems,
+  experimental_userInterfaceStyle: experimentalUserInterfaceStyleOption
 }) {
   const {
     direction
@@ -365,7 +366,7 @@ export function useHeaderConfigProps({
     children,
     headerLeftBarButtonItems: processBarButtonItems(leftItems, colors, fonts),
     headerRightBarButtonItems: processBarButtonItems(rightItems, colors, fonts),
-    experimental_userInterfaceStyle: dark ? 'dark' : 'light'
+    experimental_userInterfaceStyle: experimentalUserInterfaceStyleOption ?? (dark ? 'dark' : 'light')
   };
 }
 //# sourceMappingURL=useHeaderConfigProps.js.map
\ No newline at end of file
diff --git a/node_modules/@react-navigation/native-stack/lib/typescript/src/types.d.ts b/node_modules/@react-navigation/native-stack/lib/typescript/src/types.d.ts
index 2f1351a..5742b66 100644
--- a/node_modules/@react-navigation/native-stack/lib/typescript/src/types.d.ts
+++ b/node_modules/@react-navigation/native-stack/lib/typescript/src/types.d.ts
@@ -302,6 +302,14 @@ export type NativeStackNavigationOptions = {
      * @platform ios
      */
     unstable_headerRightItems?: (props: NativeStackHeaderItemProps) => NativeStackHeaderItem[];
+    /**
+     * When set, overrides the navigation header `UIUserInterfaceStyle` (affects iOS 26+ bar materials and tint resolution).
+     * If omitted, React Navigation sets this from the navigation theme `dark` boolean (`true` → `"dark"`, else `"light"`).
+     *
+     * @platform ios
+     * @experimental
+     */
+    experimental_userInterfaceStyle?: import('react-native-screens').ScreenStackHeaderConfigProps['experimental_userInterfaceStyle'];
     /**
      * String or a function that returns a React Element to be used by the header.
      * Defaults to screen `title` or route name.
diff --git a/node_modules/@react-navigation/native-stack/src/types.tsx b/node_modules/@react-navigation/native-stack/src/types.tsx
index 7488b1c..542333e 100644
--- a/node_modules/@react-navigation/native-stack/src/types.tsx
+++ b/node_modules/@react-navigation/native-stack/src/types.tsx
@@ -350,6 +350,15 @@ export type NativeStackNavigationOptions = {
   unstable_headerRightItems?: (
     props: NativeStackHeaderItemProps
   ) => NativeStackHeaderItem[];
+  /**
+   * When set, overrides the navigation header `UIUserInterfaceStyle` (affects iOS 26+ bar materials and tint resolution).
+   * If omitted, React Navigation sets this from the navigation theme `dark` boolean (`true` → `"dark"`, else `"light"`).
+   *
+   * @platform ios
+   * @experimental
+   * @see {@link https://github.com/react-navigation/react-navigation/issues/13069}
+   */
+  experimental_userInterfaceStyle?: ScreenStackHeaderConfigProps['experimental_userInterfaceStyle'];
   /**
    * String or a function that returns a React Element to be used by the header.
    * Defaults to screen `title` or route name.
diff --git a/node_modules/@react-navigation/native-stack/src/views/useHeaderConfigProps.tsx b/node_modules/@react-navigation/native-stack/src/views/useHeaderConfigProps.tsx
index 6f74856..d12cf7d 100644
--- a/node_modules/@react-navigation/native-stack/src/views/useHeaderConfigProps.tsx
+++ b/node_modules/@react-navigation/native-stack/src/views/useHeaderConfigProps.tsx
@@ -217,6 +217,7 @@ export function useHeaderConfigProps({
   title,
   unstable_headerLeftItems: headerLeftItems,
   unstable_headerRightItems: headerRightItems,
+  experimental_userInterfaceStyle: experimentalUserInterfaceStyleOption,
 }: Props): ScreenStackHeaderConfigProps {
   const { direction } = useLocale();
   const { colors, fonts, dark } = useTheme();
@@ -527,6 +528,7 @@ export function useHeaderConfigProps({
     children,
     headerLeftBarButtonItems: processBarButtonItems(leftItems, colors, fonts),
     headerRightBarButtonItems: processBarButtonItems(rightItems, colors, fonts),
-    experimental_userInterfaceStyle: dark ? 'dark' : 'light',
+    experimental_userInterfaceStyle:
+      experimentalUserInterfaceStyleOption ?? (dark ? 'dark' : 'light'),
   } as const;
 }