1. A method comprising: representing an anatomical region on a display; representing an electrical stimulation lead on the display; receiving user input specifying one or more stimulation parameters associated with stimulation therapy applied by an electrical stimulator via the lead; and representing a stimulation field produced by the lead based on a position of the representation of the lead and the specified stimulation parameters, wherein the stimulation field includes a plurality of electromagnetic field strengths in a plurality of different areas, and representing the stimulation field comprises representing the different field strengths with different visual indications.