Reconstruction error at different bandwidth sizes using different reconstruction approaches for the vector ZWFS. The first method (vZWFS) does not separate the wavelengths and reconstructs at the central wavelength using the broadband image. The second method (mw-vZWFS) separates the bandwidth into ten wavelength bins and then uses the multi-wavelength algorithm. Then, 50 photon noise samples are taken at each bandwidth size. Coloured areas correspond to ±1 standard deviation.