gistfile1.txt

// ==UserScript==
// @name NPC and item pictures for aowow
// @namespace Violentmonkey Scripts
// @match https://aowow.trinitycore.info/
// @grant none
// ==/UserScript==

"use strict";

if (jQuery("#view3D-button").length > 0 && !jQuery("#view3D-button").hasClass("button-red-disabled")) {
  const model_id = jQuery("#view3D-button").attr("onclick").match(/'displayId':(\d+)/)[1]
  const model_type = location.href.match(/\?([a-z]+)=/)[1]
  const thumb_url = `https://raw.githubusercontent.com/wowfanet/w/master/wdb/modelviewer/thumbs/${model_type}/${model_id}.png`
  jQuery(`<img src="${thumb_url}" style="float: right">`).insertAfter("#main-contents .text h1")
}