// Remember a SystemUiController
val systemUiController = rememberExSystemUiController()

DisposableEffect(systemUiController) {
    // Update all of the system bar colors to be transparent, and use
    // dark icons if we're in light theme
    systemUiController.setSystemBarsColor(
        color = Color.Transparent,
    )

    // setStatusBarColor() and setNavigationBarColor() also exist

    onDispose {}
}