I am trying to create an Automated Action(s) for Helpdesk that will change the color of the ticket in Kanban when a customer responds and remove it when a user responds back (basically a read/unread tag).  I can't figure out the right combination of parameters to get this to work.

I understand notifications and all of that, this is a redundancy to make sure nothing is missed and is visible to all users regardless of follower status.