Examine source code of Indicate Bookmarked Links

{
  "author": "igorlogius",
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "all_frames": true,
      "matches": [
        "*://*/*"
      ],
      "js": [
        "content-script.js"
      ],
      "css": [
        "content-script.css"
      ]
    }
  ],
  "icons": {
    "128": "icon.png"
  },
  "manifest_version": 2,
  "name": "Indicate Bookmarked Links",
  "permissions": [
    "bookmarks"
  ],
  "version": "1.0.5",
  "browser_specific_settings": {
    "gecko": {
      "id": "{dceceb32-d12c-436e-b452-b907f16fa99b}"
    }
  }
}