Visual in participant list for minors in admin panel (for board)

[rensvmoorsel]

At the moment, it is hard to see if a minor is participating to an activity for board members. For activities where alcohol is involved, but minors can also attend without the use of alcohol, it would be useful to have the minors be highlighted in the participant list in the admin console.

[SilasPeters]

Could you also add this to the koala MoSCoW?