Relativistic contributions in the maps shown in Fig. 4. Top left: relative difference between the overdensity maps at z = 0.7 with and without MB. Top right: relative difference between the overdensity maps at z = 0.7 with and without RSDs. Bottom left: relative difference between the convergence maps at z = 1.8 with and without the MB effect. As expected, the MB effect is anti-correlated with the value of the convergence. Bottom right: (Small) relative difference between the convergence maps at z = 1.8 with and without RSDs. Relativistic effects play a non-trivial role at the ten percent level in the density and convergence maps.