Set background color for the whole app. Android, Jetpack Compose

I need to set background color for the whole app. In xml, we use android:background tag in fragment or activity.

What analog Compose has? Surface argument for theme colorPalette doesn't help. Look for your solutions.

You can place your app inside a Box with needed background:

setContent {
    YourTheme {
        Box(
            modifier = Modifier
                .fillMaxSize()
                .background(Color.Yellow)
        ) {
            YourApp()
        }
    }
}