Forum side block color

[FooKaa]

Hi,

I did make a post about this ages ago with a different version and since the last update 4.2.0 its changed but this time i cant edit the color. Cant find the op ..

Im talking about the background color of the forum side blocks.

If you look at the theme the color of these side blocks is a completely different color grey to the rest of the theme...

Any chance you can let me know where i can edit this.

Thanks..