As it is possible to override the layout through the Template Overrides, Domus Organizer implemented, thanks to the FOF framework, the Media Overrides .
If you want to make some changes to style sheets, JavaScript files or images in the standard package, you only have to create a new folder in the following location:
___template___/media/com_domus/<css | js | images>/file_to_be_edited
Domus Organizer will understand that there is an override and load your file instead of the default one.
For example, if you want to change the frontend CSS, simply copy the files in the folder:
___template___/media/com_domus/css/frontend.css
and modify it to suit your needs.