Examine source code of Youtube Pearify

{
  "manifest_version": 3,
  "name": "YouTube Pearify",
  "version": "7.0",
  "description": "Modification of all YouTube thumbnails to include RoyalPear's mascot, known as Tropius from My Pokémon Ranch.",
  "icons": {
    "128": "icon.png"
  },
  "permissions": [
    "storage",
    "activeTab",
    "scripting"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://*.youtube.com/*",
        "*://m.youtube.com/*"
      ],
      "js": [
        "pearify.js",
        "pure-chalk.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "images/1.png",
        "images/2.png",
        "images/3.png",
        "images/4.png",
        "images/5.png",
        "images/6.png",
        "images/7.png",
        "images/8.png",
        "images/9.png",
        "images/10.png",
        "images/11.png",
        "images/12.png",
        "images/13.png",
        "images/14.png",
        "images/15.png",
        "images/16.png",
        "images/17.png",
        "images/18.png",
        "images/19.png",
        "images/20.png",
        "images/21.png",
        "images/flip_blacklist.json",
        "images/textFlipped/6.png",
        "images/textFlipped/7.png",
        "images/textFlipped/8.png",
        "images/textFlipped/9.png",
        "images/textFlipped/10.png",
        "logo/peartube-new-logo-dark-mode.svg",
        "logo/peartube-new-logo-white-mode.svg",
        "logo/peartube-new-logo-mobile.svg",
        "images/devious/9.png.png",
        "images/devious/10.png.png",
        "icons/cogwheel.png",
        "icons/discord.png",
        "icons/github.png",
        "icons/help.png",
        "icons/kofi.png",
        "icons/youtube.png",
        "favicons/apple-touch-icon.png",
        "favicons/favicon_144x144.png",
        "favicons/favicon_32x32.png",
        "favicons/favicon_48x48.png",
        "favicons/favicon_96x96.png",
        "favicons/favicon.ico",
        "favicons/favicon.svg",
        "favicons/site.webmanifest",
        "favicons/web-app-manifest-192x192.png",
        "favicons/web-app-manifest-512x512.png",
        "fonts/gothic-regular.ttf",
        "settings.html"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "action": {
    "default_popup": "settings.html",
    "default_icon": {
      "128": "icon.png"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "pearifyextension@gmail.com"
    }
  }
}