title: Logo not appearing on splash screen of progressive web
body: <p>In these demos, there are logos on the splash screens.</p>
  
  <p><a href="https://addyosmani.com/blog/getting-started-with-progressive-web-apps/" rel="nofollow">https://addyosmani.com/blog/getting-started-with-progressive-web-apps/</a></p>
  
  <p>I don't know what I am doing wrong in my manifest - I have an icon but it is not showing up on my splash screen.</p>
  
  <p>My manifest looks like this:</p>
  
  <pre><code>{
    "short_name": "Weather Service",
    "name": "Weather Service",
    "icons": [
      {
        "src": "logo.png",
        "sizes": "144x144",
        "type": "image/png"
      }
    ],
    "start_url": "index.html",
    "display": "standalone",
      "orientation": "portrait",
   "background_color": "#FAFAFA",
    "theme_color": "#512DA8"
  }
  </code></pre>
  
  <p>Do I need more than 1 image for it to appear on the splash screen?</p>