  We explore to what extent, and how, high-$p_\perp$ data and predictions
reflect the shape and anisotropy of the QCD medium formed in ultrarelativistic
heavy-ion collisions. To this end, we use our recently developed DREENA-A
framework, which can accommodate any temperature profile within the dynamical
energy loss formalism. We show that the ratio of high-$p_\perp$ $v_2$ and
$(1-R_{AA})$ predictions reaches a well-defined saturation value, which is
directly proportional to the time-averaged anisotropy of the evolving QGP, as
seen by the jets.
