Show different styles based on conversation type

We might work a little differently than most companies, but our reps are typically assigned to one message type at a time. We will have a team on chats, a team on phone calls and a team on emails. It would be terrific if these conversations could easily be visually identified.
I know we can do views, but it is still difficult to see what messages are chats vs emails vs phone calls when looking at a team inbox without setting up all of these views.