ThemeProvider

const AuthBasedTheme = ({ children }: { children: React.ReactNode }) => {
  const { isSignedIn: signedIn } = useIsSignedIn();
  const { evmAddress: cdpEvmAddress } = useEvmAddress();
  const isAuthenticated = signedIn && cdpEvmAddress;
  const theme = useMemo(() => (isAuthenticated ? darkTheme : {}), [isAuthenticated]);
  return (
    <ThemeProvider theme={theme}>
      {children}
    </ThemeProvider>
  );
};

function App() {
  // Change the theme based on the user's authentication status
  return (
    <CDPHooksProvider config={cdpConfig}>
      <AuthBasedTheme>
        <YourApp />
      </AuthBasedTheme>
    </CDPHooksProvider>
  );
}