Ionic 2: iOS toolbar (time, battery etc) color change

Ionic Framework ionic-v3
1

Now i have a dark color, and it’s ugly :frowning:

I tried to change it so:

import {StatusBar} from '@ionic-native/status-bar';
constructor(...){
     this.statusBar.backgroundColorByHexString('#ffffff');
    this.statusBar.styleLightContent();
}

and added this to config file:

  <preference name="StatusBarBackgroundColor" value="#13162b"/>
  <preference name="StatusBarStyle" value="#FFFFFF"/>

but this isn’t working

what i do wrong?