Energy-angular momentum relation for the SNd-like region for all (top two rows), in situ (third row), and accreted (bottom row) populations. The first and second rows are coloured by the stellar number density and the mean stellar metallicity, respectively. In the bottom two rows, the colour corresponds to mean metallicity. The coloured boxes in the top row show the selection of retrograde (red), non-rotating (blue), and prograde (yellow) stellar populations that are featured in Fig. 6. The energy is normalised to the mean energy of the corresponding sample for a given galaxy, marked at the bottom of each top panel and in units of 10⁶ kpc × km² s⁻².