  Recent ALICE measurements of jet splittings in Pb--Pb and pp collisions at
$\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV are reported. These measurements scan the
phase space of jet emissions in search of medium-induced signals which are
expected to emerge at different scales. These include effects such as multiple
soft-radiation, single hard emissions, and color coherence. The Lund plane
diagram is shown, including projections onto distributions of the splitting
scale $k_{\mathrm{T}}$ in intervals of the splitting angle $R_{\mathrm{g}}$.
Soft Drop grooming is applied to access hard splittings within the jet,
enabling measurements of groomed substructure variables. These include the
shared momentum fraction $z_{\mathrm{g}}$ between the two hardest subjets and
the number of Soft Drop splittings $n_{\mathrm{SD}}$. The results in Pb--Pb
collisions are compared to PYTHIA events embedded into a Pb--Pb background to
separate out background from in-medium effects. Measurements of
$z_{\mathrm{g}}$ and the normalized splitting angle $\theta_{\mathrm{g}}$ will
also be shown in pp collisions at $\sqrt{s}$ = 5.02 TeV for different grooming
settings.
