Effect of mergers on the intrinsic shape profiles. A: major mergers in FRs (top) and SRs (bottom). The solid lines show the median triaxiality profiles in bins of accreted mass fraction from major mergers ΔM_*, major/M_* (left panel) and in bins of Δ_{insitu, z ≤ 1} for 0.1 ≤ ΔM_*, major/M_* ≤ 0.3 (right panel). The shaded regions show the quartiles of the distributions. Major mergers increase the triaxiality at large radii, especially when the fraction of recently accreted gas is low. B: effect of mini mergers on the intrinsic shape profiles T(r) (top) and q(r) (bottom) for ETGs with negligible accreted mass from major mergers, minor mergers, and stripped from surviving galaxies. The solid lines show median profiles in bins of accreted mass fraction from mini mergers ΔM_*, mini/M_*; the shaded regions show the quartiles of the distributions. left panel: galaxies with Δ_{insitu, z ≤ 1} < 0.5 (i.e., with lower recent star formation), the right panel those with Δ_{insitu, z ≤ 1} > 0.5. Mini mergers do not significantly influence the galaxy triaxiality but tend to increase the stellar halo flattening.