MainActivityMaterialThemWrap.kt

////*** Setting content in MainActivity
CompositionLocalSampleTheme {
  // A surface container using the 'background' color from the theme
    Surface(
      modifier = Modifier.fillMaxSize(),
      color = MaterialTheme.colorScheme.background
    ) {
      Greeting("Android")
    }
}

////*** Greating Composable
@Composable
fun Greeting(name: String) {
    Text(
        modifier = modifier,
        text = "Hello $name!",
        color = MaterialTheme.colorScheme.primary,
        style = MaterialTheme.typography.bodyLarge,
    )
}