Grok Contrast Optimizer — filter-only contrast/brightness/saturation dampener for grok.com (Tampermonkey/Violentmonkey userscript)

grok-contrast-optimizer.user.js

// ==UserScript==
// @name         Pure Filter Contrast Optimizer (Simple)
// @namespace    http://tampermonkey.net/
// @version      1.2
// @description  Dampens contrast, brightness and saturation on grok.com using CSS filters only, without touching background colors
// @author       Gemini
// @match        *://grok.com/*
// @grant        none
// @run-at       document-start
// ==/UserScript==

(function() {
  'use strict';
  const style = document.createElement('style');
  style.textContent = 'html { filter: contrast(0.88) brightness(0.94) saturate(0.92) !important; }';
  document.documentElement.appendChild(style);
})();