Examine source code of Make Donald Duck Again

{
  "content_scripts": [
    {
      "js": [
        "donald.js"
      ],
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "run_at": "document_start"
    }
  ],
  "web_accessible_resources": [
    "donald/*"
  ],
  "description": "Make Donald Duck Again!",
  "manifest_version": 2,
  "name": "Make Donald Duck Again",
  "permissions": [
    "http://*/*",
    "https://*/*"
  ],
  "short_name": "makedonaldduckagain",
  "version": "0.6resigned1",
  "browser_specific_settings": {
    "gecko": {
      "id": "{749c7555-ccfb-4867-b321-a6dc68b985dd}"
    }
  }
}