Maximum continuum intensity, I_c, max, as a function of E_c, d, and E_tot for all simulations included in the F-CHROMA grid. The values for d have been divided into four distinct locations to avoid overlap and to show E_tot corresponding to each simulation (indicated at the top). Dashed vertical lines indicate the border between the different spectral index values. The size corresponds to I_c, max, as indicated in the legend below the x-axis. Red indicates WL cases, whereas gray specifies non-WL cases. The cases used for the case studies are indicated with numbers 1 and 2.