Sensitivity of the model parameters in Bayesian analysis to the flow observables, shown as a color map. Light yellow shades represent low or no sensitivity, whereas orange and red colors represent moderate or strong sensitivities to the corresponding model parameter variation, respectively. The sensitivity analysis is based on the {T\raisebox{-.5ex}{R}ENTo}+iEBE-VISHNU model~. Several key parameters are displayed, including $\eta/s(T)$, $\zeta/s(T)$, $\tau_{\rm fs}$, and $T_{\rm switch}$. More details can be found in Ref.~.