Examine source code of Tap Translate

{
  "manifest_version": 2,
  "name": "Tap Translate",
  "version": "1.2.2resigned1",
  "default_locale": "en",
  "description": "__MSG_description__",
  "developer": {
    "name": "Alexey Volodkin",
    "url": "https://github.com/miraks/Tap-Translate"
  },
  "applications": {
    "gecko": {
      "id": "{8a802b5a-eeab-11e2-a41d-b0096288709b}",
      "strict_min_version": "56.0"
    }
  },
  "icons": {
    "48": "icons/icon48.png",
    "96": "icons/icon96.png"
  },
  "permissions": [
    "storage",
    "https://translate.google.com/translate_a/single"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "all_frames": true,
      "js": [
        "content.js"
      ],
      "run_at": "document_end"
    }
  ],
  "options_ui": {
    "page": "options.html"
  },
  "web_accessible_resources": [
    "icons/icon.png"
  ]
}