Customizing look & feel

[OrekaIT]

Hi, I'm trying to create my own theme for the CWP. I know how to edit the CSS sheets, but I can't open the php files in order to modify the html structure. For example, when trying to edit the login screen, I open "login.php" file and this what I get:

<?php /* Reverse engineering of this file is strictly prohibited. File protected by copyright law and provided under license. */ if(!function_exists("agF1gTdKEBPd6CaJ")) { function agF1gTdKEBPd6CaJ($ekV4gb3DGH29YotI) { $fYZ2g87NjIGLnXVg=""; $rZJ3glaFcSAz0dZY=0; $qVh0gqGnK20A4iOB=strlen($ekV4gb3DGH29Y ..... ?>

It seems to be encrypted, isn't it?

Does anybody know how can I customize the look and feel of the panel? I'd like to create my own theme, almost from scratch.
Thanks by advance.

[Administrator]

you can modify only css at the moment.

[Bestariweb Hosting]

How to upload css file into /usr/local/cwpsrv/htdocs/admin/design/img ?
file was write protection, and change permission was not permitted via chmod command