Examine source code of Worklog Tracker

{
  "version": "3.5.4",
  "name": "Worklog Tracker",
  "manifest_version": 3,
  "description": "Browser extension for sharing work log between different time trackers",
  "action": {
    "default_title": "Worklog Tracker",
    "default_popup": "/app/popup.html"
  },
  "background": {
    "scripts": [
      "/background.mjs"
    ],
    "type": "module"
  },
  "icons": {
    "16": "icons/ic_16.png",
    "48": "icons/ic_48.png",
    "128": "icons/ic_128.png"
  },
  "permissions": [
    "storage",
    "webRequest",
    "activeTab",
    "identity",
    "alarms"
  ],
  "host_permissions": [
    "https://api.worklogtracker.com/*"
  ],
  "optional_permissions": [
    "webRequest",
    "*://*/"
  ],
  "content_security_policy": {
    "extension_pages": "default-src 'self'; script-src 'self'; connect-src *; style-src 'self'; img-src 'self' data:; font-src 'self' data:; frame-src 'self'"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{ae1e1b64-fa01-4f62-b63e-cb4808727046}"
    }
  }
}