Emulator predictions of the void size function (VSF; left) and density profiles (right), obtained by varying one input parameter at a time (rightmost panels, from top to bottom). Other parameters are kept at their fiducial values for QUIJOTE (see Table 1). The dashed green line shows the prediction with all input parameters at their fiducial values. Profiles for all void size bins are shown in each panel, where Q1 denotes the bin containing the smallest voids and Q4 the bin containing the largest voids. Lower panels show the difference between predictions and those at fiducial parameter values.