Examine source code of ProcrastiScan

{
  "manifest_version": 3,
  "name": "ProcrastiScan",
  "version": "2.1.0",
  "description": "A new approach to detecting procrastination",
  "icons": {
    "128": "assets/procrastiscan-icon-128px.png"
  },
  "permissions": [
    "tabs",
    "webNavigation",
    "storage",
    "theme"
  ],
  "content_security_policy": {
    "extension_pages": "script-src 'self' 'wasm-unsafe-eval'; object-src 'self';"
  },
  "host_permissions": [
    "http://localhost/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "service_worker": "background.js",
    "type": "module"
  },
  "action": {
    "default_popup": "popup.html"
  },
  "options_ui": {
    "page": "settings.html",
    "open_in_tab": true
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{2507637b-7733-4247-9992-da494b1aff66}"
    }
  }
}