Toon Boom Animation's Toon Boom Harmony software was used as the main software package for the production of the film, as the Computer Animation Production System (CAPS) system that Disney developed with Pixar in the 1980s for use on their previous traditionally animated films had become outdated.[41] The Harmony software was augmented with a number of plug-ins to provide CAPS-like effects such as shading on cheeks and smoke effects.[13][39] The reinstated traditional unit's first production, a 2007 Goofy cartoon short entitled How to Hook Up Your Home Theater, was partly animated without paper by using Harmony and Wacom Cintiq pressure-sensitive tablets.