Examine source code of Keyboard Event

{
  "action": {
    "default_icon": "src/icon.png"
  },
  "content_scripts": [
    {
      "js": [
        "src/content.js"
      ],
      "matches": [
        "*://*/*"
      ]
    }
  ],
  "description": "Customize keys to trigger HTML DOM events",
  "manifest_version": 3,
  "name": "Keyboard Event",
  "options_page": "src/options.html",
  "browser_specific_settings": {
    "gecko": {
      "id": "{514549dd-7037-4f60-903f-a7b451cb8a61}"
    }
  },
  "permissions": [
    "storage"
  ],
  "version": "0.2025.615.0"
}