colors[theme]을 아무리 시도해봐도 못읽어옵니다!

캐시도 다 지워보고, 앱도 삭제해보고, 재설치도 해보고 해봤는데 원인을 모르겠네요...
강사님 코드로 바꿔넣어도, 동일하게 아래와 같은 에러가 발생합니다.

이유를 알고싶습니다..!!

ERROR  TypeError: Cannot read property 'PINK_700' of undefined

This error is located at:

    in CustomButton (created by AuthHomeScreen)

    in RCTView (created by View)

    in View (created by AuthHomeScreen)

    in RCTSafeAreaView (created by AuthHomeScreen)

    in AuthHomeScreen (created by SceneView)

    in StaticContainer

    in EnsureSingleNavigator (created by SceneView)

    in SceneView (created by CardContainer)

    in RCTView (created by View)

    in View (created by CardContainer)

    in RCTView (created by View)

    in View (created by CardContainer)

    in RCTView (created by View)

    in View

    in CardSheet (created by Card)

    in RCTView (created by View)

    in View (created by Animated(View))

    in Animated(View) (created by PanGestureHandler)

    in PanGestureHandler (created by PanGestureHandler)

    in PanGestureHandler (created by Card)

    in RCTView (created by View)

    in View (created by Animated(View))

    in Animated(View) (created by Card)

    in RCTView (created by View)

    in View (created by Card)

    in Card (created by CardContainer)

    in CardContainer (created by CardStack)

    in RNSScreen (created by Animated(Anonymous))

    in Animated(Anonymous) (created by InnerScreen)

    in Suspender (created by Freeze)

    in Suspense (created by Freeze)

    in Freeze (created by DelayedFreeze)

    in DelayedFreeze (created by InnerScreen)

    in InnerScreen (created by Screen)

    in Screen (created by MaybeScreen)

    in MaybeScreen (created by CardStack)

    in RNSScreenContainer (created by ScreenContainer)

    in ScreenContainer (created by MaybeScreenContainer)

    in MaybeScreenContainer (created by CardStack)

    in RCTView (created by View)

    in View (created by Background)

    in Background (created by CardStack)

    in CardStack (created by HeaderShownContext)

    in RNCSafeAreaProvider (created by SafeAreaProvider)

    in SafeAreaProvider (created by SafeAreaProviderCompat)

    in SafeAreaProviderCompat (created by StackView)

    in RCTView (created by View)

    in View (created by GestureHandlerRootView)

    in GestureHandlerRootView (created by StackView)

    in StackView (created by StackNavigator)

    in PreventRemoveProvider (created by NavigationContent)

    in NavigationContent

    in Unknown (created by StackNavigator)

    in StackNavigator (created by AuthStackNavigator)

    in AuthStackNavigator (created by RootNavigator)

    in RootNavigator (created by App)

    in EnsureSingleNavigator

    in BaseNavigationContainer

    in ThemeProvider

    in NavigationContainerInner (created by App)

    in _QueryClientProvider (created by App)

    in App

    in RCTView (created by View)

    in View (created by AppContainer)

    in RCTView (created by View)

    in View (created by AppContainer)

    in AppContainer

    in MatzipApp(RootComponent), js engine: hermes

 ERROR  TypeError: Cannot read property 'WHITE' of undefined

This error is located at:

    in RetryErrorBoundary (created by RootNavigator)

    in RootNavigator (created by App)

    in EnsureSingleNavigator

    in BaseNavigationContainer

    in ThemeProvider

    in NavigationContainerInner (created by App)

    in _QueryClientProvider (created by App)

    in App

    in RCTView (created by View)

    in View (created by AppContainer)

    in RCTView (created by View)

    in View (created by AppContainer)

    in AppContainer

    in MatzipApp(RootComponent), js engine: hermes

 ERROR  TypeError: Cannot read property 'WHITE' of undefined

This error is located at:

    in RetryErrorBoundary (created by RootNavigator)

    in RootNavigator (created by App)

    in EnsureSingleNavigator

    in BaseNavigationContainer

    in ThemeProvider

    in NavigationContainerInner (created by App)

    in _QueryClientProvider (created by App)

    in App

    in RCTView (created by View)

    in View (created by AppContainer)

    in RCTView (created by View)

    in View (created by AppContainer)

    in AppContainer

    in MatzipApp(RootComponent), js engine: hermes