Examine source code of Deep Sea Discovery

{
  "manifest_version": 2,
  "name": "Deep Sea Discovery",
  "version": "1.0",
  "description": "Dive into the deep blue! Guess marine life and ocean wonders from Vietnamese clues to English.",
  "icons": {
    "48": "ocean_explorer.png"
  },
  "browser_action": {
    "default_popup": "surface.html",
    "default_title": "Deep Sea Discovery"
  },
  "permissions": [],
  "browser_specific_settings": {
    "gecko": {
      "id": "{585a366c-ec15-481b-a60e-8712dc64c1f0}",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  }
}