Examine source code of Better VBTV

{
  "manifest_version": 3,
  "name": "Better VBTV",
  "version": "1.2.0",
  "description": "Watch VBTV (Volleyball World TV) replays spoiler-free, with keyboard seek, playback speed, shortcuts overlay, and resume history.",
  "permissions": [
    "activeTab",
    "storage"
  ],
  "action": {
    "default_popup": "src/index.html"
  },
  "content_scripts": [
    {
      "js": [
        "assets/content.ts-loader-CHh3lvKO.js"
      ],
      "matches": [
        "https://tv.volleyballworld.com/*"
      ],
      "css": [
        "assets/content-BkL1ingG.css"
      ]
    }
  ],
  "icons": {
    "16": "icons/icon-16.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "better-vbtv@caaatisgood",
      "strict_min_version": "115.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "web_accessible_resources": [
    {
      "matches": [
        "https://tv.volleyballworld.com/*"
      ],
      "resources": [
        "assets/videoMeta-Xldh0tL9.js",
        "assets/content.ts-DdeSNb1f.js"
      ]
    }
  ]
}