Examine source code of Nature Flow Visualizer

{
  "manifest_version": 3,
  "name": "Nature Flow Visualizer",
  "version": "1.0",
  "description": "A calm visual effect inspired by natural flow and soft motion for relaxation and creativity.",
  "action": {
    "default_popup": "popup.html",
    "default_title": "Nature Flow"
  },
  "icons": {
    "48": "icon.jpg",
    "128": "icon.jpg"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "myaddon@domain.com",
      "strict_min_version": "109.0"
    }
  },
  "permissions": []
}