Magnification map extracted from the B23_new lens model is shown in the right panel, with contours marking the stacked, triply imaged Balmer line emission produced by the A and B components (see the left panel with the same contours). The two mirrored images B1 and B2 and A1,2 are labeled on the color-coded μ_tot map (adopting a square root scale). The lines corresponding to μ_tot = 100 are also overlaid in green.