Individual terms of the model cross-covariance, plotted together with the numerically measured ones of the SLICS without shape noise (convergence maps). The top left plot displays the terms when fixing θ₄ = 4′, the top right when fixing θ₄ = 8′, and the bottom left fixing θ₄ = 16′. The bottom right heat map shows the difference between the modelled cross-covariance and the sample covariance normalised by the bootstrapping error.