You can help me I have to change category icons only you can put icons and what I want to put I'm not icons ,,,,, here's what I talk about these icons I would like to put (categories)

@Fabio
Icons can be changed in theme settings...

where I find this code in which folder
<a id="cat-link" rel="96" href="#ct96" class="open-home-cat" title="Mostra sottocategorie di Edilizia">
                      <div class="img">
                        <span style="background:#f08080;"></span>

                                                  <i class="fa fa fa-user-circle-o" style="color:#f08080;"></i>
                                              </div>

                      <div class="name">Edilizia</div>
                    </a>

@Fabio
inc.category.php

ok, but what code do I have to insert ... to insert the custom icons since they are not on Font-Awesome Icon

@Fabio
In order to use icon images (png, jpg, gif, ...), disable font-awesome icons in theme settings and upload own icons for each category at bottom of theme settings.

sorry I did not understand how I should do it

@Fabio
Do you know where theme settings are?

I know where I'm setting theme http://prntscr.com/i24yvk

So you know now where to upload category icon images.

@fabio

if you will ask silly question no one will help you.. You need to know everything before start classified site. atleast you need to take basic knowledge.

I do not ask stupid questions if one does not know does not know if it comes here to the forum there is a reason ... Anyway I have to insert png images I went http://prntscr.com/i258k0 I inserted the images but nothing

Anyway I do not come here to be insulted

"Check to ON if you want to use Font-Awesome icons instead of Small images for categories."

Anyway I do not come here to be insulted

As a user we do our best to provide you the best suggestion- step by step,
interacts with you to sort out your query-(sometime we get banned for helping beyond the scope)  

[censored - we must be nice  ]

play with the code!