Examine source code of Bookmarks Home Visual Pro

{
  "manifest_version": 2,
  "name": "Bookmarks Home Visual Pro",
  "version": "1.1.0",
  "description": "A fast, lightweight visual bookmarks extension for your new tab page",
  "author": "Northbayjoe",
  "browser_specific_settings": {
    "gecko": {
      "id": "bookmarks-home-visual-pro@northbayjoe",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  },
  "permissions": [
    "bookmarks",
    "storage",
    "notifications",
    "tabs",
    "<all_urls>"
  ],
  "chrome_url_overrides": {
    "newtab": "newtab.html"
  },
  "browser_action": {
    "default_icon": {
      "16": "icons/icon16.png",
      "32": "icons/icon32.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    },
    "default_title": "Bookmarks Home Visual Pro"
  },
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  }
}