Examine source code of YT Nonstop

{
  "author": "JohnyP e.a.",
  "name": "YT Nonstop",
  "description": "No more 'Video paused. Continue watching?' confirmation box! And with two extra options: 1) disable autoplay; 2) loop playlist.",
  "homepage_url": "https://github.com/JohnyP36/YT-Nonstop",
  "icons": {
    "16": "images/ext16.png",
    "32": "images/ext32.png",
    "48": "images/ext48.png",
    "128": "images/ext128.png"
  },
  "page_action": {
    "default_icon": {
      "16": "images/ext16.png",
      "32": "images/ext32.png",
      "48": "images/ext48.png",
      "128": "images/ext128.png"
    },
    "default_popup": "popup1.3.2.html",
    "show_matches": [
      "*://www.youtube.com/*",
      "*://music.youtube.com/*"
    ]
  },
  "options_ui": {
    "browser_style": false,
    "page": "popup1.3.2.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "idJohnyP@example.net",
      "strict_min_version": "79.0"
    }
  },
  "manifest_version": 2,
  "background": {
    "persistent": false,
    "scripts": [
      "js/background.js"
    ]
  },
  "content_scripts": [
    {
      "js": [
        "js/autoconfirm.js",
        "js/autoplay+loop.js"
      ],
      "matches": [
        "*://www.youtube.com/*",
        "*://music.youtube.com/*"
      ],
      "run_at": "document_end"
    }
  ],
  "web_accessible_resources": [
    "fonts/Copperplate.woff2",
    "fonts/Estrangelo.woff2",
    "fonts/Lucida.woff2"
  ],
  "permissions": [
    "storage",
    "tabs",
    "*://www.youtube.com/*",
    "*://music.youtube.com/*"
  ],
  "version": "2.1.0.2"
}