Examine source code of Viral Outbreak 1

{
  "theme": {
    "images": {
      "theme_frame": "Viral-Outbreak-1-Top.jpg"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Viral Outbreak 1",
  "manifest_version": 2,
  "description": "It's contagious!"
}