How do I tell if crew are injured?

[Krauter]

1) Aye, when their injured, its a pinkish colour..

2) As far as I can tell, it's only when you check their health points, (Fortunatly, I've never lost a crew member [Except when first checking depth and lost control of boat])

3) I assume that they automatically heal after an amount of time, however I think after their below 50 health points, you have to return to port to heal them

With Regards,

Krauter