Spectral dependence on the SFH. Colored lines illustrate the age dependence of the six spectral features included in our analysis. The solid black line shows the SFH-equivalent prediction resulting from weighting each SSP model according to the measured SFH. We note that the continuum of each model has been normalized to better represent the flux of the different SSPs. However, during the fitting process the normalization is only applied to the SFH-equivalent model prediction (i.e., the black line).