1. An implantable medical device comprising: a memory configured to store data for a program of the implantable medical device; a therapy unit configured to perform at least one of delivery of therapy and sensing of a physiological signal at a therapy target of an anatomical feature of a patient; and an interface configured to receive the data for the program and to store the data for the program to the memory, wherein the interface is further configured to receive graphics processing data comprising data that, when applied during a rendering process, produces an image of the anatomical feature of the patient, and to store the graphics processing data to the memory, wherein the implantable medical device is not configured to perform the rendering process using the graphics processing data.