Examine source code of NewTab Studio

{
  "manifest_version": 2,
  "name": "NewTab Studio",
  "version": "0.1.6",
  "description": "Custom Firefox new tab and home page dashboard with floating widgets, wallpapers, RSS, weather, and glass effects.",
  "browser_specific_settings": {
    "gecko": {
      "id": "@newtab-studio",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "searchTerms",
          "locationInfo"
        ]
      }
    }
  },
  "icons": {
    "48": "addon-icon.svg",
    "96": "addon-icon.svg"
  },
  "permissions": [
    "storage",
    "unlimitedStorage",
    "notifications",
    "geolocation",
    "*://*/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "browser_action": {
    "default_title": "Add current tab to Quick Links",
    "default_icon": {
      "32": "addon-icon.svg"
    }
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "chrome_url_overrides": {
    "newtab": "newtab.html"
  },
  "chrome_settings_overrides": {
    "homepage": "newtab.html"
  },
  "web_accessible_resources": [
    "assets/*",
    "wallpapers/*",
    "icons/*",
    "fonts/*"
  ]
}