Examine source code of Remove Youtube Shorts

{
  "manifest_version": 2,
  "name": "Remove Youtube Shorts",
  "version": "1.2.1",
  "description": "Remove Youtube Shorts tab in navigation tab, and redirect Youtube Shorts Videos to original Youtube video player, for better experience on desktop.",
  "homepage_url": "https://github.com/raven0230/Remove-Youtube-Shorts",
  "author": "Raven Liu",
  "content_scripts": [
    {
      "matches": [
        "*://www.youtube.com/*"
      ],
      "js": [
        "waitForElm.js",
        "removeShortsDom.js",
        "removeShortSectionInChannelPage.js",
        "removeShortInSubscriptionPage.js"
      ]
    }
  ],
  "background": {
    "scripts": [
      "background/redirectShorts.js",
      "background/contextMenu.js"
    ]
  },
  "icons": {
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png"
  },
  "permissions": [
    "tabs",
    "storage",
    "menus"
  ],
  "options_ui": {
    "page": "options/options.html",
    "browser_style": true
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{2766e9f7-7bf2-4c72-81b9-d119eb54c753}"
    }
  }
}