Examine source code of Break Time Tracker

{
  "manifest_version": 2,
  "name": "Break Time Tracker",
  "version": "1.0",
  "description": "Monitor rest time to ensure a balance between work and rest.",
  "permissions": [
    "storage",
    "notifications",
    "alarms"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": true
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "32": "icons/logo_32.png",
      "64": "icons/logo_64.png",
      "128": "icons/logo_128.png"
    }
  },
  "icons": {
    "32": "icons/logo_32.png",
    "64": "icons/logo_64.png",
    "128": "icons/logo_128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{a24244d9-f84d-49be-b15b-bfb4af177636}"
    }
  }
}