Examine source code of Pair Translate

{
  "manifest_version": 2,
  "name": "__MSG_meta_name__",
  "description": "__MSG_meta_description__",
  "version": "2.5.0",
  "icons": {
    "16": "icons/16.png",
    "32": "icons/32.png",
    "48": "icons/48.png",
    "128": "icons/128.png"
  },
  "permissions": [
    "storage",
    "<all_urls>"
  ],
  "default_locale": "en",
  "commands": {
    "open-translator-popup": {
      "suggested_key": {
        "default": "Alt+Shift+T"
      },
      "description": "__MSG_commands_openTranslatorPopup__",
      "global": true
    }
  },
  "web_accessible_resources": [
    "katex/*",
    "icons/*",
    "iframe.html"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_popup": "popup.html"
  },
  "options_ui": {
    "open_in_tab": true,
    "browser_style": true,
    "page": "options.html"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content-scripts/content.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{553e27c4-f327-4eea-802f-f1999c2926f6}"
    }
  }
}