Evolution of the contrast with the phasing-error amplitude: (blue) for the CSP design, (red) for the RAP1 design, and (green) for the RAP2 design. 1000 different error amplitudes are considered between 1 mrad RMS and 3 rad RMS. For each of them, 100 phasing errors are simulated and propagated, 100 PSFs normalized by their aberrated direct-image peak are computed, and the average of the 100 resulting dark hole contrasts is plotted.