Inner slope of the dark matter density profile, measured between 1% and 2% of the virial radius, as a function of the stellar-to-halo mass ratio. Top panel: Results for the NIHAO suite. Bottom panel: Same but for galaxies from the FIRE-2 dataset. Circles for each galaxy are colour coded by their burst deviation (the difference between actual and expected bursty mass fraction at a given stellar mass). Separate fits are shown for galaxies with above- (dashed red lines) and below- (dashed blue lines) average burstiness. Dashed black lines show the fits to the full sample of galaxies from each suite and grey bands represent the 1σ scatter around the fit. All fits follow Eq. (2) with parameters shown in Table 2.