问题 as the image can show it , my app shows a line at the top of my Footer and at the bottom of my Header. Its seems a common thing in Native Base. I have checked out the native-base theme but I can´t find some to fix this error. Code: import React, { Component } from 'react'; import { Container, Content, Footer, FooterTab, Button, Icon, Text, Header, Title, Left, Right, Body, } from 'native-base'; export default class FooterTabsExample extends Component { render() { return ( <Container> <Header>