Observed and fitted light curves for the supernova candidates SVISS-SN43, SVISS-SN161, SVISS-SN115, and SVISS-SN116. The left-hand panels show the observed R (solid hexagons) and I (squares) light curves along with the best-fit light curve of the most likely supernova subtype, solid (black) for R and dashed (blue) for I. The error bars given for the observations are based on the photometric accuracy simulations described in Sect. 2.3.2. If the source is non-detected (i.e., has an estimated magnitude error of more than 1), a magnitude lower limit is given. The right-hand panels show the R − I colour evolution. For the R − I plot, the limit symbols indicate that the source was only detected in one of the bands and a lower or upper limit is given (this figure is available in colour in the electronic version of the article).