1.) The first thing to do is to go to WGT, which of course you've done because you're reading this, hehe. You can fire up the game client as well if you like.
2.) Then click on your Stylish extension toolbar button and click on the Create New Style button at the bottom of the pop-up window. I have to scroll down a little with my mouse wheel to see the Create New Style button.
3.) In the Add Style pane on the left, enter a name for your new style.
4.) Then, in the Code 1 box in the Sections area, type the following
#gameclient {
filter : hue-rotate(200deg);
}
5.) Next, in the Applies to section below the code box, click the drop down arrow in the URL's on the domain box, and select URL's starting with.
6.) In the box next to that, which should have in it, www.wgt.com. Change it to http://www.wgt.com/gameclient.aspx
7.) That's it, finished.
If you now look at the game client, it should be a funny colour. I don't know what colour setting will suit you Shaun, but what you will need to do is to change the hue-rotate degree value to find what works best for you. As this is effectively a colour wheel, the value can be anything from 0-360deg. You can go over 360deg, but as there are 360 degrees in a circle you'll just be going back to the start again. Don't forget to click the save button in the left pane after each change to apply that change.
The only downside is that you'll have to have a WGT webpage open as well as the game client when playing. This will give you access to the Stylish button on the browser toolbar to be able to switch the effect on and off with the Activate/Deactivate button.
Hope that works for you Shaun and good luck, and if you've got any questions, you know where to find me. ; )
Scott.