Examine source code of FIO Client

{
  "name": "FIO Client",
  "description": "Client for the FIO REST database",
  "version": "3.9",
  "manifest_version": 3,
  "browser_specific_settings": {
    "gecko": {
      "id": "{d7a1061c-6d18-48fb-a42c-3f1c73b0cdf9}",
      "strict_min_version": "109.0"
    }
  },
  "icons": {
    "16": "/assets/fio-16.png",
    "32": "/assets/fio-32.png",
    "48": "/assets/fio-48.png",
    "128": "/assets/fio-128.png"
  },
  "action": {
    "default_popup": "/popup/popup.html",
    "default_icon": {
      "16": "/assets/fio-16.png",
      "32": "/assets/fio-32.png",
      "48": "/assets/fio-48.png",
      "128": "/assets/fio-128.png"
    },
    "dim_icon": {
      "16": "/assets/fio-16-dim.png",
      "32": "/assets/fio-32-dim.png",
      "48": "/assets/fio-48-dim.png",
      "128": "/assets/fio-128-dim.png"
    }
  },
  "permissions": [
    "storage"
  ],
  "host_permissions": [
    "https://apex.prosperousuniverse.com/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://apex.prosperousuniverse.com/*"
      ],
      "run_at": "document_start",
      "js": [
        "content-script.js"
      ]
    }
  ],
  "web_accessible_resources": [
    {
      "matches": [
        "https://apex.prosperousuniverse.com/*"
      ],
      "resources": [
        "*.js"
      ]
    }
  ]
}