Examine source code of NeuroPuzzle

{
  "name": "__MSG_name__",
  "version": "1.0",
  "browser_specific_settings": {
    "gecko": {
      "id": "neuro-puzzle@tu-extension.dev"
    }
  },
  "manifest_version": 3,
  "default_locale": "es",
  "description": "__MSG_description__",
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "images/icon16.png",
      "48": "images/icon48.png",
      "128": "images/icon128.png"
    }
  },
  "permissions": [
    "tabs"
  ],
  "host_permissions": [
    "*://*/*"
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "fast.html",
        "fast-math.html",
        "memory-math.html",
        "secuency-memory.html",
        "word-search.html",
        "images/*",
        "styles.css",
        "*.css"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "icons": {
    "16": "images/icon16.png",
    "48": "images/icon48.png",
    "128": "images/icon128.png"
  }
}