Normalized size distributions of BGGs in log scale for the z = 0.0−0.5 bin and a summary panel tracking the evolution of the fitted parameters across all redshift bins. Star-forming galaxies (SFGs) and quiescent galaxies (QGs) are shown as blue and red histograms, respectively. Dashed lines indicate best-fit skewed normal functions, with annotated parameters-mean μ, standard deviation σ, and skewness a. At low redshift, QGs appear more compact and less scattered than SFGs, which exhibit broader, more asymmetric distributions. The full set of redshift-dependent size distributions is available in Section 6.