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QUAGSIRE

Turns every webpage you visit into Quag

// ==UserScript==
// @name        QUAGSIRE
// @namespace   english
// @description Turns every webpage you visit into Quag
// @include     http*://*.*.*/*
// @version     1.0
// @run-at 
// @grant       
// ==/UserScript==

document.body.style.backgroundImage = "url('https://i.imgur.com/yj2osKn.png')";