Similar to Fig. 18 where values of the extinction curve features are size-coded either by the SN ejecta X_SNII, C growth strength for the case of carbonaceous grains, or by the coagulation growth strength X_coa, Sil for the case of silicate grains, and are color-coded by the accretion fractions f_acc, C in blue or f_acc, Sil in red (see text for details). Values are shown every 25 Myr from 100 Myr to 400 Myr. Extinction curves features for different galaxy type (G8HG, G9HG, G9LG) are shown in different panels (respectively left, middle and right), and each panel contains simulations with different initial metallicities Z_g, 0, from low to high initial metallicity moving from the bottom left of each panel to the top/top-right of the panel in anti-clock wise manner.