Currently there are a few color variations to Tinnitus Talk's default theme (Flexile), but also a bit different one, named Default Style, which you can check out and if you like it, you can use it instead. I might add more styles in the future. I personally love the Flexile style. 
You can change the style by clicking "Flexile" in the footer, as shown in this image:

You can change the style by clicking "Flexile" in the footer, as shown in this image: