Panels a–d: individual distributions of elemental abundances for the Splash (orange box), GSE (blue box), Thamnos1 (green box), and Thamnos2 (red box), which are depicted using box plots. The analysis covers 32 chemical elements, X, related to iron, [X/Fe], and iron abundance, which is related to hydrogen, [Fe/H]. Each box plot adheres to standard conventions, with the first and third quartiles defining the box body, “whiskers” extending to minimum and maximum values, and the median shown as a black line inside each box.