Examine source code of Artstation Plus

{
  "name": "Artstation Plus",
  "version": "3.8.1",
  "description": "Adding new features to Artstation",
  "manifest_version": 3,
  "icons": {
    "72": "icons/icon-72.png",
    "128": "icons/icon-128.png"
  },
  "options_ui": {
    "page": "ui/options.html",
    "open_in_tab": false
  },
  "permissions": [
    "activeTab",
    "downloads",
    "storage"
  ],
  "host_permissions": [
    "*://*.artstation.com/*"
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "icons/crosshairs.svg",
        "icons/eye.svg",
        "icons/thumbs-up.svg",
        "icons/trend.svg",
        "icons/download.svg",
        "css/styles.css",
        "ui/download.html",
        "ui/download.js"
      ],
      "matches": [
        "*://*.artstation.com/*"
      ]
    }
  ],
  "background": {
    "scripts": [
      "worker.js"
    ],
    "type": "module"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.artstation.com/*"
      ],
      "js": [
        "js/functions.js",
        "js/content.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{891eee3c-e8d2-43e6-aa3a-e53e272ccd60}"
    }
  }
}