Examine source code of Bookmark Highlighter

{
  "manifest_version": 2,
  "name": "Bookmark Highlighter",
  "version": "2.2resigned1",
  "description": "Highlights links to any URLs that are bookmarked",
  "icons": {
    "48": "icons/highlighter-48.png",
    "96": "icons/highlighter-96.png"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "contentScript.js"
      ]
    }
  ],
  "background": {
    "scripts": [
      "backgroundScript.js"
    ]
  },
  "permissions": [
    "bookmarks",
    "storage"
  ],
  "options_ui": {
    "page": "options.html"
  },
  "applications": {
    "gecko": {
      "id": "jid0-CNA8w9TYZz7H2Wrq5ZfmSO5yB0I@jetpack"
    }
  }
}