I'm a new mavericks user and I'm puzzled about how to complete a task. I'm working a project which involves several folders, which I want to put in my dock so I don't have to keep going to the Finder window. The problem is, the folders all appear with the same icon: a blue folder. This defeats my purpose so I'd like to have different icons to tell what's what. I changed the icons on two of the folders in Finder, but when I try to move those to the dock the changed icons don't transfer. Instead a get a sheet of paper icon that says "doc." How can I change the dock icons?