Examine source code of Kentico Admin Therapy

{
  "browser_specific_settings": {
    "gecko": {
      "id": "{bb4c43d5-4f8a-422f-81e3-a8039d5c3353}"
    }
  },
  "manifest_version": 3,
  "name": "Kentico Admin Therapy",
  "version": "2.3",
  "description": "Minor UX improvements for XbK admin interface. Configure extension on extension option page. xPeRiAnCe bY KeNtIcO 🙏",
  "permissions": [
    "storage"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "icons": {
    "48": "Icon_48x48.png",
    "96": "Icon_96x96.png"
  },
  "action": {
    "default_title": "Kentico Admin Therapy",
    "default_icon": "Icon_96x96.png"
  },
  "background": {
    "service_worker": "background.js",
    "scripts": [
      "background.js"
    ]
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "modules/titleTherapy.js",
        "modules/arrowTherapy.js",
        "modules/airaTherapy.js",
        "modules/shortcutTherapy.js",
        "content.js"
      ],
      "css": [
        "modules/arrowTherapy.css",
        "modules/shortcutTherapy.css"
      ],
      "run_at": "document_idle"
    }
  ]
}