In LoxBerry, most of us (including the LoxBerry core Developers) use the HTML::Template Module with Perl. Unfortunately, we currently do not have our own documentation. It is under development if we have the time
So for now please use the existing documentation, which is fully valid also for LoxBerry.
HTML::Template documentation: https://metacpan.org/pod/HTML::Template
HTML::Template FAQ: https://metacpan.org/pod/HTML::Template::FAQ
HTML::Template Tutorial: http://www.perlmonks.org/?node_id=65642