Examine source code of nHentai Vertical Scroll

{
  "manifest_version": 3,
  "name": "nHentai Vertical Scroll",
  "version": "1.2.3",
  "description": "Loads all images onto a single page for vertical scrolling.",
  "icons": {
    "48": "icons/icon_48.png",
    "96": "icons/icon_96.png",
    "128": "icons/icon_128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "nhentaiverticalscroll@coomerland.com",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      },
      "gecko_android": {
        "strict_min_version": "142.0"
      }
    }
  },
  "content_scripts": [
    {
      "matches": [
        "https://nhentai.net/g/*"
      ],
      "js": [
        "js/vertical_scroll.js"
      ]
    }
  ],
  "host_permissions": [
    "https://i.nhentai.net/*",
    "https://nhentai.net/*"
  ]
}