Hi there. nice theme by the way. How could I change the “theme color”. What I mean is the header bar and the boxes itsself. Im not such a crack in the css but I hope you can help me.
Oli,
There are no easy way to change color for the theme elements and you will have to change it via CSS.
To change navigation color look for #main-nav-wrapper inside style.css which can be accessed via WordPress Dashboard → Appearance → Editor.
And change its background: color to one you like.
If by boxes you mean posts themselves you should look up for #post-area .postinside the same style.css. There you will see the same background: tag.
Let me know if I understood you correctly.