Examine source code of Attention: Screen Time Tracker & Blocker

{
  "manifest_version": 3,
  "name": "Attention: Screen Time Tracker & Blocker",
  "version": "2.27.0",
  "description": "Screen time tracker and website blocker. See where your time goes, block distracting sites, set daily limits. 100% private.",
  "permissions": [
    "storage",
    "tabs",
    "alarms",
    "idle"
  ],
  "background": {
    "scripts": [
      "categories.js",
      "focus.js",
      "backup.js",
      "background.js"
    ]
  },
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "icons": {
    "48": "images/icon48.png",
    "128": "images/icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{c7afb9ee-c80c-4b35-a501-673326b8a4f7}",
      "strict_min_version": "115.0"
    }
  },
  "optional_host_permissions": [
    "https://api.lemonsqueezy.com/*"
  ],
  "host_permissions": [
    "https://docs.google.com/*"
  ]
}