Examine source code of FoxBoard

{
  "manifest_version": 3,
  "name": "FoxBoard",
  "version": "1.0.0",
  "description": "FoxBoard transforms your Firefox new tab into a personalized dashboard with icon-based bookmark management, collapsible categories, dynamic Unsplash backgrounds, time/date display, and user settings.",
  "icons": {
    "16": "assets/icons/icon-16.png",
    "32": "assets/icons/icon-32.png",
    "48": "assets/icons/icon-48.png",
    "96": "assets/icons/icon-96.png",
    "128": "assets/icons/icon-128.png"
  },
  "chrome_url_overrides": {
    "newtab": "newtab.html"
  },
  "permissions": [
    "bookmarks",
    "storage",
    "tabs",
    "topSites"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self'; img-src 'self' https://www.google.com https://*.gstatic.com https://images.unsplash.com data: https:;"
  },
  "web_accessible_resources": [
    {
      "resources": [
        "assets/backgrounds/*.jpg",
        "assets/backgrounds/*.jpeg",
        "assets/backgrounds/*.png",
        "assets/icons/*.png"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "foxboard@mpalatsi",
      "strict_min_version": "109.0"
    }
  }
}