Distribution of half-light radii, normalised by the expected value derived from the regression of r_e against stellar mass ($r_{\mathrm{fit}}\propto M_{\star }^{0.28}$; see Fig. 11). As in Fig. 9, Fornax dwarf galaxies are shown in purple. The upper panels shows the distribution of individual samples separated by the labelled designs as in the left of Fig. 9. The lower panel shows the full satellites (yellow) and the combined nearly isolated + satellites samples (blue). The total field sample is plotted in dotted black lines. There is no obvious distinction between the samples in the effective radius–stellar mass plane.