Examine source code of dlPro

{
  "browser_specific_settings": {
    "gecko": {
      "id": "dlpro@machineonamission.me"
    }
  },
  "manifest_version": 3,
  "name": "dlPro",
  "description": "yt-dlp, the most powerful web video downloader, now fully embedded in your browser.",
  "version": "1.2.0",
  "options_page": "/pages/settings/index.html",
  "options_ui": {
    "page": "/pages/settings/index.html",
    "open_in_tab": true
  },
  "action": {
    "default_title": "dlPro: click to download current page"
  },
  "permissions": [
    "scripting",
    "cookies",
    "storage"
  ],
  "host_permissions": [
    "*://*/*"
  ],
  "content_security_policy": {
    "extension_pages": "script-src 'self' 'wasm-unsafe-eval'; object-src 'self';"
  },
  "web_accessible_resources": [
    {
      "resources": [
        "core/content/*",
        "logo/*",
        "core/iframe/iframe.html",
        "core/sandbox/sandbox.html"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "icons": {
    "16": "logo/shadow/logo-16.png",
    "32": "logo/shadow/logo-32.png",
    "48": "logo/shadow/logo-48.png",
    "64": "logo/shadow/logo-64.png",
    "128": "logo/shadow/logo-128.png"
  }
}