Cumulative NCR distributions of five constructed filters. Hα+[N II], [O II] and Ca II triplet distributions correspond to the J0660, J0378, and J0861 continuum-subtracted filters, respectively. The Hα filter is the result of removing the [N II] contribution, which is only applied to SNe with z < 0.014. All distributions correspond to the median and one sigma of the 30 000 NCR trial distributions as outlined in Sect. 5.1 of Lyman et al. (2021). The straight black diagonal line represents a hypothetical distribution, infinite in size, that accurately traces the respective observed flux. The gray shading marks the lowest values of zeros in a distribution in each filter.