Examine source code of New Tab Recent Bookmarks

{
  "manifest_version": 2,
  "name": "New Tab Recent Bookmarks",
  "version": "8.2",
  "description": "Show pinned folders and recent bookmarks on new tab page.",
  "homepage_url": "https://github.com/Zren/NewTabRecentBookmarks",
  "icons": {
    "48": "icons/ntrb-logo-48.png",
    "96": "icons/ntrb-logo-96.png"
  },
  "permissions": [
    "bookmarks",
    "storage",
    "tabs"
  ],
  "chrome_settings_overrides": {
    "homepage": "newtab.html"
  },
  "chrome_url_overrides": {
    "newtab": "newtab.html"
  },
  "background": {
    "scripts": [
      "faviconcacher.js"
    ]
  },
  "options_ui": {
    "page": "options.html",
    "browser_style": true
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{2fc064c9-df02-4a75-b941-b712d3f240de}"
    }
  }
}