Examine source code of Ocean Wave Flow

{
  "manifest_version": 3,
  "name": "Ocean Wave Flow",
  "version": "1.0",
  "description": "Generates soft CSS wave animations for a relaxing visual popup. No data collected.",
  "action": {
    "default_popup": "popup.html",
    "default_title": "Ocean Wave Flow",
    "default_icon": {
      "48": "icon48.png",
      "128": "icon128.png"
    }
  },
  "icons": {
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "permissions": [],
  "browser_specific_settings": {
    "gecko": {
      "id": "oceanwave@example.com",
      "strict_min_version": "109.0"
    }
  }
}