UI Kitten - Modal -如何设置样式和大小、颜色等？

import { Modal, Button } from '@ui-kitten/components';
import { StyleSheet } from 'react-native';

const styles = StyleSheet.create({
  modal: {
    backgroundColor: 'white',
    borderRadius: 8,
    padding: 16,
  },
  button: {
    marginTop: 8,
  },
});

<Modal
  visible={modalVisible}
  backdropStyle={styles.backdrop}
  onBackdropPress={() => setModalVisible(false)}
>
  <View style={styles.modal}>
    <Text>这是一个模态框</Text>
    <Button style={styles.button} onPress={() => setModalVisible(false)}>
      关闭
    </Button>
  </View>
</Modal>