Violin plot of the matter power spectrum relative to the DMO spectrum in 20 bands, similar to Fig. 2, but for a single broad redshift bin, Z, which combines the smaller bins Z₁–Z₃. The width of the shaded regions represents the posterior probability density; the 68th and 95th percentile CIs about the median are also shown inside the regions (open boxes and sticks, respectively). The green, light blue, and dark blue bands illustrate the suppression predicted by the FLAMINGO cosmological hydrodynamical simulation between z = 0 and 1.5 for the fiducial, weak, and strong feedback models, respectively. The yellow band indicates the mean suppression at small angular scales (68% CI), including correlations between the different points (Fig. C.1), favouring the strong feedback model.