Inner halo populations in the [Mg/Fe] vs. [Fe/H] diagram. Cumulative distribution plots of the populations selected with GALAH in the [Mg/Fe] vs. [Fe/H] space. Contour colors are consistent with those used in Fig. 4. The symbols display the TITANS associated to Gaia-Enceladus and Erebus, as well as two unclassified stars. Top panel: regions occupied by the stars from Gaia-Enceladus and the Splash. Bottom panel: regions occupied by the stars from Gaia-Enceladus and Erebus.