Example of Type Ia supernova light curves normalized by their SALT2 flux intensity parameter x₀. For this illustration, only targets passing the following criteria are displayed (see Sect. 4.1): z  ∈  [0.05, 0.09], c  ∈  [−0.1, 0.1], and x₁  ∈  [−1, 1]. In each panel, the black lines represent the SALT2 model at the median redshift (z = 0.07), color (c = 0.01), and stretch (x₁ = 0.17). Bottom panels: Zoom on specific time periods illustrated by a given band. From top to bottom, early phases (g), near maximum light (r), and the second peak period (i) are shown. White markers show the daily bin median fluxes (quarter of a day for the early phases). This figure contains 781 SNe Ia.