Two-Gaussian decomposition of the Splash samples selected with the alternative angular-momentum cuts defined in Figure C1(c). The left column corresponds to L_z < 400 kpc km s⁻¹, and the right column to L_z < 600 kpc km s⁻¹. Panels (a) and (b) show the selection-corrected age–[Fe/H] distributions together with the best-fitting age–[Fe/H] relations of the two Gaussian components. Panels (c) and (d) show the observed and model age distributions, while panels (e) and (f) show the corresponding [Fe/H] distributions. All other plotting conventions are the same as in Figure 2.