Examine source code of Geometry Dash Online

{
  "manifest_version": 3,
  "name": "Geometry Dash | Play Geometry Dash online",
  "version": "1.1.13",
  "description": "Free Online Browser Game",
  "default_locale": "en",
  "icons": {
    "16": "assets/images/geodash-16.png",
    "32": "assets/images/geodash-32.png",
    "48": "assets/images/geodash-48.png",
    "128": "assets/images/geodash-128.png"
  },
  "action": {
    "default_icon": "assets/images/geodash-128.png",
    "default_popup": "load.html"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "hello@geodash.org",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  },
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self'"
  }
}