Examine source code of Animalese Typing v1.36

{
  "author": "Joshua Sherry",
  "browser_specific_settings": {
    "gecko": {
      "id": "dagexviii.dev@gmail.com"
    }
  },
  "manifest_version": 3,
  "name": "Animalese Typing",
  "description": "Plays animal crossing villager sounds whenever you type!",
  "version": "1.36",
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "animalese.js"
      ]
    }
  ],
  "background": {
    "page": "audio.html"
  },
  "action": {
    "default_icon": {
      "128": "assets/images/icon_off.png"
    },
    "default_popup": "popup.html"
  },
  "permissions": [
    "storage"
  ],
  "icons": {
    "48": "assets/images/icon48.png",
    "128": "assets/images/icon128.png"
  }
}