Effective radius, R_eff (top panels), and surface density, Σ_eff (centre panels), of the accreted component of all galaxies in our sample, coloured according to accreted-mass fraction and scaled to the median value at each mass (i.e. ${\stackrel{\sim }{f}}_{\mathrm{acc}}=f_{\mathrm{acc}}/f_{\mathrm{acc},\mathrm{med}}$) as a function of stellar mass (left panels) and virial mass (right panels). Dashed coloured lines show the median for galaxies with ${\stackrel{\sim }{f}}_{\mathrm{acc}}<1/3$ (beige) or ${\stackrel{\sim }{f}}_{\mathrm{acc}}>3$ (purple). For comparison, in the top panels we show the median projected stellar half-mass radius of the total stellar component (dashed green line) and the adopted galaxy radius R_glx (in projection, solid black line). Sérsic indices, n, derived from fits to the accreted component surface-density profiles of stacked galaxies are shown in the bottom panels. With solid magenta lines, we show the median trends reported by Cooper et al. (2025).