For example, in kide/views/kide/tmpl/defualt_msgs.php
Change
echo '<span style="cursor: pointer" title="'.$tiempo.'" onclick="KIDE_mensaje(\''.addslashes($r->name).'\', '.$r->id.', \''.$link.'\', \''.$tiempo.'\', \''.$r->ip.'\', '.$r->rango.', \''.$r->img.'\')" class="'.KideHelper::getRango($r->rango).'">';
//By
$special_users = array('admin', 'tautuvas');
echo '<span style="cursor: pointer" title="'.$tiempo.'" onclick="KIDE_mensaje(\''.addslashes($r->name).'\', '.$r->id.', \''.$link.'\', \''.$tiempo.'\', \''.$r->ip.'\', '.$r->rango.', \''.$r->img.'\')" class="'.KideHelper::getRango(in_array($r->name,$special_users)?0:$r->rango).'">';
In assets/js/chat.js
nodo.innerHTML = s_hora+'<span style="cursor: pointer" title="'+ti+'" class="KIDE_'+KIDE_rangos[rango_insert]+'" onclick="KIDE_mensaje(\''+liName+'\', '+id+', \''+liUrl+'\', \''+ti+'\', \''+ip+'\', '+rango_insert+', \''+img+'\')">'+liName+'</span>: <span '+color_text+'>'+KIDE_filter_smilies(liText)+'</span>';
// By
var special_users = new Array('admin', 'tautuvas');
nodo.innerHTML = s_hora+'<span style="cursor: pointer" title="'+ti+'" class="'+'KIDE_'+KIDE_rangos[KIDE_in_array(liName,special_users)?0:rango_insert]+'" onclick="KIDE_mensaje(\''+liName+'\', '+id+', \''+liUrl+'\', \''+ti+'\', \''+ip+'\', '+rango_insert+', \''+img+'\')">'+liName+'</span>: <span '+color_text+'>'+KIDE_filter_smilies(liText)+'</span>';