How to add underline to first author at publications section?

[leader1313]

I want to draw a line under the first author's name on the publications list.
or emphasizing first author ?
Does anyone know how to do it?

[leader1313]

I just solve this problem by modifying '_config.yml' as:

scholar:

  last_name: [my_last]
  first_name: [my_first]