How to use an image on sidebar dynamic section title?

Hello all,

I’m wondering how to use an image on the sidebar dynamic section content (categories, links, recent etc).
I noticed creative review blog is actually using it. You can check it here:
https://www.creativereview.co.uk/crblog/

On the left bar ex. Most recently commented title is an image.

I’ve tried to tune in my .php playing with:

<?php if ( function_exists(‘dynamic_sidebar’) && dynamic_sidebar(1) ) : else : ?>

<h2><?php _e(‘Categories’); ?></h2>

<?php wp_list_cats(‘sort_column=name&hierarchical=0’); ?>

• <h2><?php _e(‘Archives’); ?></h2>

<?php wp_get_archives(‘type=monthly’); ?>

But it looks like it dosn’t work.

Basically i want to replace the <h2><?php _e(‘Archives’); ?></h2> with an ../images/archives.gif
Does I have to tune the style.css or to edit the .php?
By now i was not able to figure that out.

Any help would be appreciated,
thanks.

M