Examine source code of EsReal

{
  "manifest_version": 3,
  "name": "EsReal",
  "version": "2.6.5.1",
  "description": "Trust becomes verifiable",
  "permissions": [
    "notifications",
    "storage",
    "tabs",
    "alarms"
  ],
  "host_permissions": [
    "https://esreal.org/v/*",
    "https://esreal.org/api/*"
  ],
  "background": {
    "scripts": [
      "firefox-shim.js",
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "https://esreal.org/v/*"
      ],
      "js": [
        "qr-code-styling.js",
        "qrcode.min.js",
        "etipdrawer.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "https://*/*"
      ],
      "js": [
        "overlay.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "action": {
    "default_title": "Trust becomes verifiable",
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "32": "icons/icon32.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "default_locale": "en",
  "browser_specific_settings": {
    "gecko": {
      "id": "support@esreal.be",
      "strict_min_version": "128.0"
    }
  }
}