Examine source code of Nuenki

{
  "manifest_version": 3,
  "browser_specific_settings": {
    "gecko": {
      "id": "nuenki_firefox_0_stopbeingduplicate@nuenki.app",
      "strict_min_version": "110.0"
    }
  },
  "name": "Nuenki",
  "description": "Learn languages while you browse the web.",
  "version": "2.0.0",
  "permissions": [
    "storage",
    "tabs",
    "alarms"
  ],
  "action": {
    "default_popup": "./popup.html",
    "default_area": "navbar"
  },
  "icons": {
    "96": "./assets/logo-g-96.png",
    "256": "./assets/logo-g-256.png",
    "512": "./assets/logo-g-512.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*/*"
      ],
      "js": [
        "./root.js"
      ],
      "all_frames": true
    }
  ],
  "background": {
    "scripts": [
      "./background.js"
    ]
  },
  "content_security_policy": {
    "extension_pages": "script-src 'self' 'wasm-unsafe-eval'; object-src 'self'"
  },
  "web_accessible_resources": [
    {
      "resources": [
        "pages/licenses.html",
        "pages/welcome_msg.gif"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ]
}