Icones on main page

[killerkraft]

Hello,

This time i need your expert help on a simple question.

If you see this forum, http://www.forumzoneru.25.com1.ru/index.php, witch is made with smf, you will notice that each section has its own icon.

So the million dollar question is : How is it done ? 

If you could help me, thank's in advance.

KK

[A.M.A]

Different board Icons

[killerkraft]

  Sorry, obviously no search button on my end of the forum