How to add props in the component

I am using this above Flatlist with a component. So here I am saying an icon in the variable back. I want to send some color to this svg icon from {item.back}. How can i do this so that if any conditions change I will send a color to Icons and change its color?

const data = [{ back: <Icon/>}]

<FlatList
  showsVerticalScrollIndicator={false}
  keyExtractor={(item, index) => index}
  data={data}
  renderItem={() => <Item />}
/>;

const Item_view = ({ item, index }) => {
  const { navigateTo } = item;
  return <View>{item.back}</View>;
};