Examine source code of YaMusic PRO

{
  "manifest_version": 3,
  "name": "YaMusic PRO",
  "version": "1.5.1",
  "description": "Ультимативный пульт для Я.Музыки. Интерактивный мини-плеер, умные папки и сохранение треков для офлайн-прослушивания.",
  "permissions": [
    "downloads",
    "storage",
    "tabs"
  ],
  "host_permissions": [
    "https://*.yandex.ru/*",
    "https://*.yandex.by/*",
    "https://*.yandex.kz/*",
    "https://*.yandex.uz/*",
    "https://*.yandex.com/*",
    "https://*.yandex.net/*"
  ],
  "background": {
    "service_worker": "service-worker-loader.js",
    "type": "module",
    "scripts": [
      "service-worker-loader.js"
    ]
  },
  "action": {
    "default_popup": "popup.html",
    "default_title": "Управление треком"
  },
  "options_page": "options.html",
  "content_scripts": [
    {
      "js": [
        "assets/vibe-interceptor.js-BmOKVNob.js"
      ],
      "matches": [
        "https://music.yandex.ru/*",
        "https://music.yandex.by/*",
        "https://music.yandex.kz/*",
        "https://music.yandex.uz/*",
        "https://music.yandex.com/*"
      ],
      "run_at": "document_start",
      "world": "MAIN"
    },
    {
      "js": [
        "assets/content.js-BoBnyDJd.js"
      ],
      "matches": [
        "https://music.yandex.ru/*",
        "https://music.yandex.by/*",
        "https://music.yandex.kz/*",
        "https://music.yandex.uz/*",
        "https://music.yandex.com/*"
      ],
      "run_at": "document_idle"
    }
  ],
  "web_accessible_resources": [
    {
      "matches": [
        "https://music.yandex.by/*",
        "https://music.yandex.com/*",
        "https://music.yandex.kz/*",
        "https://music.yandex.ru/*",
        "https://music.yandex.uz/*"
      ],
      "resources": [
        "vibe-interceptor.js",
        "assets/vibe-interceptor.js-BmOKVNob.js",
        "assets/content.js-BoBnyDJd.js"
      ]
    }
  ],
  "icons": {
    "16": "icons/16.png",
    "32": "icons/32.png",
    "48": "icons/48.png",
    "128": "icons/128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "yamusicpro@kernelpace.github.io",
      "strict_min_version": "128.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}