How do I change the icon of a favorite?

Then pick from a large library of icons provided by Maps Pro or Import your own (PNG, JPG, GIF or BMP files):

Note that if you just want to change the icon's color (to indicate that you have visited the place for instance), all the star icons are in the first two columns.
You can also go to Menu > My favorites. Then select the favorites you want to change or click on the group's option and pick "Select all", then choose "Change Icon" from the bottom toolbar:
