Percentage of light curves with deviations above 0.2 mag as a function of photosphere size. Each color represents a different fraction of the stellar component with F_* = 1 corresponding to the fiducial model and F_* = 0.1 with a model having ten times less microlens surface mass density. The solid lines are for the image 1 and the dashed lines are for image 2. Note how, especially for image 1, reducing the mass in the microlens model can result in more frequent distortions in the light curve. The vertical dotted line marks the FWHM 65 days after the explosion (FWHM = 2 * R = 4.31 × 10⁻³ pc, in the SN rest frame, see Appendix D).