Examine source code of PuntoMatico Print

{
  "manifest_version": 3,
  "name": "PuntoMatico Print",
  "short_name": "PuntoMatico Print",
  "version": "1.0.0",
  "description": "Permite al POS PuntoMatico imprimir tickets en impresoras locales del comercio a traves del servicio nativo instalado en la maquina.",
  "author": "PuntoMatico",
  "homepage_url": "https://puntomatico.cl",
  "browser_specific_settings": {
    "gecko": {
      "id": "{b3a8cdcf-db92-488a-a723-ef8120ff8ea4}",
      "strict_min_version": "128.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "icons": {
    "16": "icons/icon-16.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "action": {
    "default_title": "PuntoMatico Print",
    "default_popup": "src/popup/popup.html",
    "default_icon": {
      "16": "icons/icon-16.png",
      "48": "icons/icon-48.png",
      "128": "icons/icon-128.png"
    }
  },
  "options_ui": {
    "page": "src/options/options.html",
    "open_in_tab": true
  },
  "background": {
    "scripts": [
      "src/background.js"
    ]
  },
  "permissions": [
    "nativeMessaging",
    "storage",
    "activeTab"
  ],
  "host_permissions": [
    "http://localhost/*",
    "http://127.0.0.1/*",
    "https://*.puntomatico.cl/*",
    "https://*.sushimatico.cl/*",
    "https://*.pizzamatico.cl/*"
  ],
  "optional_host_permissions": [
    "https://*/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "http://localhost/*",
        "http://127.0.0.1/*",
        "https://*.puntomatico.cl/*",
        "https://*.sushimatico.cl/*",
        "https://*.pizzamatico.cl/*"
      ],
      "js": [
        "src/content.js"
      ],
      "run_at": "document_start",
      "all_frames": false
    },
    {
      "matches": [
        "http://localhost/*",
        "http://127.0.0.1/*",
        "https://*.puntomatico.cl/*",
        "https://*.sushimatico.cl/*",
        "https://*.pizzamatico.cl/*"
      ],
      "js": [
        "src/injected.js"
      ],
      "world": "MAIN",
      "run_at": "document_start",
      "all_frames": false
    }
  ]
}