Adding a button to the game client to switch the colour filter on and off.
To get the button to appear on the game client you will need to install another browser extension. This time it's Tampermonkey. Click the link left and look for the link for your browser on Tampermonkey's home page.
Once installed, click the Tampermonkey toolbar icon on your browser then click the Dashboard button...
...in the Dashboard, click the create New userscript button...
...in the New userscript code window, select all the pre-installed code, and delete it...
Copy the script below, and paste it into the New userscript code window...
// ==UserScript==
// @name Filter
// @namespace http://tampermonkey.net/
// @version 0.1
// @description try to take over the world!
// @author You
// @match http://www.wgt.com/gameclient.aspx*
// @grant none
// ==/UserScript==
(function() {
'use strict';
var game1 = document.getElementById("game");
var game2 = document.getElementById("gameclient");
var newbtn = document.createElement("button");
newbtn.setAttribute("id","colbtn");
newbtn.setAttribute("type","button");
newbtn.innerHTML = "Filter";
newbtn.addEventListener("click",change);
game1.appendChild(newbtn);
function change(){game2.classList.toggle("colOn");newbtn.classList.toggle("colOn");}
})();
...then click the save button...
...now you can close the Tampermonkey browser tab.
Next, you'll need to add a bit more CSS to the Stylish browser extension.
Click on the Stylish toolbar icon on your browser and click the edit button...
...if you already have a CSS filter value for the game client, then make a note of it and