Examine source code of BC2YT

{
  "manifest_version": 2,
  "name": "BC2YT",
  "version": "0.4.0",
  "description": "Show Bitchute videos in YouTube's recommended section",
  "icons": {
    "48": "icons/logo-48.png",
    "96": "icons/logo-96.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.youtube.com/*"
      ],
      "js": [
        "browser-polyfill.min.js",
        "main.js"
      ],
      "css": [
        "style.css"
      ],
      "run_at": "document_end"
    }
  ],
  "background": {
    "scripts": [
      "browser-polyfill.min.js",
      "background.js"
    ]
  },
  "browser_action": {
    "default_icon": "icons/logo-32.png",
    "default_title": "BC2YT",
    "default_popup": "popup/settings.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{9b140686-42f6-4a28-9b1c-d13ab488ee5d}",
      "strict_min_version": "57.0"
    }
  },
  "permissions": [
    "storage",
    "https://www.youtube.com/*",
    "https://www.bitchute.com/*"
  ]
}