@Composable
fun MainContent() {
    Row(
        horizontalArrangement = Arrangement.spacedBy(16.dp),
        modifier = Modifier
            .background(MaterialTheme.colors.primary)
            .padding(16.dp)
            .clickable { println("Click") }
    ) {
        Icon(
            imageVector = Icons.Filled.Add,
            contentDescription = "Add icon",
            tint = MaterialTheme.colors.onPrimary,
            modifier = Modifier as Modifier
        )
        Text("Add new", color = MaterialTheme.colors.onPrimary, fontWeight = FontWeight.Normal)
    }
}