Upper panel: bolometric lightcurves (including all bands, i.e., X-ray/UV/optical) for the Lc model. The blue, red, green, and purple lines correspond to viewing angles of 10°, 20°, 45°, and 60°. Four lightcurves converge at ∼1 day. Lower panel: the evolution of color temperature for the Lc model. The corresponding peak energy E_peak is shown on the right axis.