Top panel: Aperture photometry I‐band light curve of the host+SN+afterglow of GRB 031203. The dashed line shows the I magnitude of the host (19.21). Middle panel: Aperture photometry J‐band light curve of the host+SN+afterglow of GRB 031203. The dashed line shows the J magnitude of the host (18.29). The rise and decay in brightness are consistent with a Type Ic SN. These values have not been corrected for Galactic extinction. Bottom panel: ﹩I{\mbox{﹩-﹩}} J﹩ color evolution; a slight reddening in color may occur as the SN approaches peak brightness. The dashed line shows the ﹩I{\mbox{﹩-﹩}} J﹩ color of the host (0.92).