There are .jade files on the project, as I see they are producing .html files. Just advantage I see , jade library has simple notation , make front end files more readable for someone who knows jade library.
But disadvantages:

1-It is difficult to adopt for someone who does not have knowledge about jade, we are producing files with “jade” command on developer terminal.

2-jade files and produced html files must be synchronized, if some developer directly modifies html file rather than producing with jade, hmtl file and source file(jade file) will be imcompatible. These are problems.

3-We can not have full control on DOM with jade files, we will have more control with html, css.

So I really can not understand why the project needs jade library? Am I missing something?