Examine source code of ai_test_helper

{
  "manifest_version": 2,
  "name": "AI Test Helper",
  "version": "1.0",
  "description": "Highlights text and gets AI answers in a small overlay",
  "permissions": [
    "activeTab",
    "storage",
    "https://generativelanguage.googleapis.com/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "overlay.css"
      ]
    }
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icon.png",
      "48": "icon.png"
    }
  },
  "icons": {
    "48": "icon.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "ai-test-helper@addon",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}