Upper panel: individual (MW corrected) g − r color evolution for 31 SNe from photometry with the polynomial fits represented as solid lines. The red lines represent the fit of the data with the g − r template. The blue line is the template for a Type Ic with no extinction from Stritzinger et al. (2018), and each panel shows the reddening in E(B − V) required to shift the color curve to the data. This represents the estimated host extinction measured in magnitudes. Bottom panel: same as above for the 11 SNe where the colors are calculated from spectroscopy.