medator
Hi
Its nice to see you have added your own icons, however we are unable to add this as update, because its something that personal customization and if a user already had something applied on his site OR they do not want to show it, it will force them to use the same icons.
Joomla contact options also has option to add custom icons : http://prntscr.com/nnvkae , As you know its an older template and many customer using this too. So its hard to apply a change the can impact other users site display that already came with template.
You can keep this file in / ja_argo /local/ html / com_contact / contact / default_address.php
This will work as an override and template update not override the changes.
I will share this feedback with development team for future plans for contact page style.
Regards
