This is the way my page looks.
If you want it to look like this, or some variation of the forum, read on.
Your browser must be google chrome
You cannot use an iOS device for this
To do this, I use a chrome plugin called Stylish.
Here is the link to install.
Once you have stylish installed, go to this page. Choose the theme you want to use and install it to stylish. Go back to the forum and reload the page. If it looks bad, just try another one.
If you need help, just tell me.