Examine source code of Cozy new tab

{
  "manifest_version": 3,
  "name": "Cozy - new tab",
  "version": "1.0.3",
  "description": "A cozy and stylish replacement for your new tab page with customizable widgets and beautiful backgrounds.",
  "author": "TheLoserCoder",
  "homepage_url": "https://github.com/TheLoserCoder/Cozy",
  "icons": {
    "16": "icon.png",
    "32": "icon.png",
    "48": "icon.png",
    "128": "icon.png"
  },
  "chrome_url_overrides": {
    "newtab": "index.html"
  },
  "permissions": [
    "storage",
    "theme"
  ],
  "host_permissions": [
    "https://*/*",
    "http://*/*",
    "<all_urls>",
    "*://*/*"
  ],
  "background": {
    "service_worker": "worker.js",
    "type": "module",
    "scripts": [
      "worker.js"
    ]
  },
  "action": {},
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self'; img-src 'self' data: https: http: blob:; connect-src 'self' https: http: data:;"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "cozy@extension.com",
      "strict_min_version": "109.0"
    }
  }
}