Indentation of comments at Wordpress?

Using Discourse at Wordpress as comments system, our replies shows like this, as you can see also at our webpage:

But, is there something we can do to add indentation when someone answers to a previous comment? Something like this

Discourse is a flat discussion system. There are no plans to support visual indentation beyond what you get when you expand replies at the bottom of each reply, or expand the in-reply-to at the top of each reply.

It is possible someone could contribute that rendering mode to the WP plugin.