Examine source code of Reddit Comment Translator

{
  "manifest_version": 2,
  "name": "Reddit Comment Translator",
  "version": "1.0",
  "description": "Helps you with translating comments for subreddits with non-native language",
  "icons": {
    "48": "icons/img-48.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.reddit.com/r/*/comments/*"
      ],
      "js": [
        "translate.js"
      ]
    }
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "permissions": [
    "menus",
    "tabs",
    "activeTab"
  ]
}