Optical light curve (top panel) and color temperature (bottom panel) from an uncollimated choked jet simulation (the same simulation and same observing angle as in Figure 1); see the Appendix for details. The data are taken from Kasliwal et al. (2017). Here we show the fit for a two-component ejecta, where the opacity of slow-moving material (<0.1c; mostly ejected along the equator) is ﹩5\,{\mathrm{cm}}^{2}\,{{\rm{g}}}^{-1}﹩, corresponding to a lanthanides-rich material, while that of fast-moving material is ﹩0.8\,{\mathrm{cm}}^{2}\,{{\rm{g}}}^{-1}﹩, consistent with the expectation for a lanthanides-poor material. A fit with a similar quality is obtained for a single lanthanides-poor component outflow with a constant opacity of ﹩0.8\,{\mathrm{cm}}^{2}\,{{\rm{g}}}^{-1}﹩. The contributions of the two power sources are shown: the cocoon cooling emission (dashed line) and the radioactive macronova (dotted line). The cocoon macronova emission is significant during the first day, after which the ejecta macronova dominates the emission.