Examine source code of Goal Achievement Tracker

{
  "manifest_version": 2,
  "name": "Goal Achievement Tracker",
  "version": "1.0.0",
  "description": "Track your goals with progress bars, milestones, and achievement motivation. Stay focused on your objectives.",
  "permissions": [
    "storage"
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_title": "Goal Achievement Tracker",
    "default_icon": {
      "16": "icons/icon-16.png",
      "32": "icons/icon-32.png",
      "48": "icons/icon-48.png",
      "128": "icons/icon-128.png"
    }
  },
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{80dc1f61-a886-4177-bbb5-302c3fddc914}"
    }
  }
}