ContentColor.kt

@Composable
@ReadOnlyComposable
fun defaultContentColorFor(backgroundColor: Color): Color =
   H19Theme.colors.contentColorFor(backgroundColor).takeOrElse { LocalContentColor.current }

private fun H19Colors.contentColorFor(backgroundColor: Color): Color {
   return when (backgroundColor) {
       primary -> onPrimary
       background -> onBackground
       else -> Color.Unspecified
   }
}