ReactNative：更改 ImageBackground 的不透明度 colored颜色

我一直在努力开发下面提到的屏幕:

为此，我创建了以下组件:

import React, {Component} from 'react';
import {View, Text, StyleSheet, ImageBackground, Image} from 'react-native';
import Balance from './Balance.js'

class AccountHeader extends React.Component{
    render(){
        return(
            <ImageBackground
                source={require('../images/lawrance.jpg')}
                style={styles.container}>
                    <View style={styles.overlay}></View>
                    <Text style = {[styles.textStyle, {paddingTop: 10}]} >My Account</Text>
                    <Image source= {require('../images/lawrance.jpg')}
                        style={styles.avatarStyle}/>
                    <Text style = {styles.textStyle} > Jenifer Lawrance</Text>
                    <Text style = {styles.textStyle} > +14155552671</Text>
                    <Balance style= {styles.balanceContainer}/>
            </ImageBackground>
        );
    }
}

const styles = StyleSheet.create({
    container: {
        backgroundColor:'red',
        opacity: 0.6
    },
    overlay: {
        backgroundColor:'transparent',
        opacity: 0.6
    },
    avatarStyle: {
        width:100, 
        height: 100,
        marginTop: 10,
        borderRadius: 50,
        alignSelf: 'center',
    },
    textStyle: {
        marginTop: 10,
        fontSize: 18,
        color: "#FFFFFF",
        fontWeight: 'bold',
        alignSelf: 'center',
    },
    balanceContainer:{
        padding:10,
    }
  });

export default AccountHeader;

现在有两个问题:

1. 更改ImageBackground的不透明度也会更改其子对象的不透明度
2. 无法更改不透明度的 colored颜色

感谢您的帮助！

Design screen:

Developed Screen