Examine source code of Podcast playlist creator

{
  "manifest_version": 3,
  "name": "Podcast playlist creator",
  "browser_specific_settings": {
    "gecko": {
      "id": "@podcast-playlist-creator"
    }
  },
  "version": "1.1",
  "description": "Download podcasts and create rss-feed",
  "icons": {
    "16": "icons/favicon-16x16.png",
    "48": "icons/favicon-48x48.png",
    "128": "icons/favicon-128x128.png"
  },
  "action": {
    "default_popup": "index.html"
  },
  "background": {
    "scripts": [
      "background_script.js"
    ],
    "type": "module"
  },
  "web_accessible_resources": [
    {
      "resources": [
        "podcast_window.html"
      ],
      "matches": [
        "https://*/*"
      ]
    }
  ],
  "content_scripts": [
    {
      "matches": [
        "https://*/*"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "style.css"
      ]
    }
  ],
  "permissions": [
    "tabs",
    "webRequest",
    "downloads",
    "storage"
  ],
  "host_permissions": [
    "*://*/*"
  ]
}