Examine source code of fox in flame

{
  "name": "fox in flame",
  "manifest_version": 2,
  "description": "animation of the fox in the flame in the header of the page",
  "version": "1.2resigned1",
  "author": "Christophe Villeneuve",
  "icons": {
    "48": "icons/screen-48.png",
    "96": "icons/screen-96.png",
    "128": "icons/screen-128.png"
  },
  "background": {
    "scripts": [
      "background/anim.js"
    ]
  },
  "web_accessible_resources": [
    "resources/*"
  ],
  "permissions": [
    "theme"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{09b6b3b3-61ff-4c60-976b-7fdc7100d6d4}"
    }
  }
}