Examine source code of Feed Inventory Tracker

{
  "manifest_version": 2,
  "name": "Feed Inventory Tracker",
  "version": "1.0",
  "description": "Feed Inventory Tracker. This utility helps to track and manage livestock feed inventory.",
  "permissions": [],
  "browser_action": {
    "default_popup": "game.html",
    "default_icon": {
      "128": "images/feed-logo.png"
    }
  },
  "icons": {
    "128": "images/feed-logo.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{ad350c96-3cc2-447c-8fd5-0b760b7faeae}"
    }
  }
}