Examine source code of Ghostbuster

{
  "manifest_version": 2,
  "name": "Ghostbuster",
  "version": "1.0",
  "description": "Avoid screen burn-in, image persistence and ghost image with a css animation which move periodically the body of web pages.",
  "icons": {
    "48": "icons/48.png"
  },
  "browser_action": {
    "default_icon": "icons/48.png",
    "default_title": "Ghostbuster",
    "default_popup": "popup/popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*/*"
      ],
      "js": [
        "content_scripts/main.js"
      ]
    }
  ],
  "permissions": [
    "storage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{12670538-6a0e-401d-904c-e8e7ff7d1f01}"
    }
  }
}