Retrieved transmission spectra through chromatic RM of atmosphere-less planet similar to WASP-19. A dark spot causes the planet to look large at shorter wavelengths, which is similar to what one would expect from a hazy atmosphere in a planet that causes a Rayleigh scattering slope. Nevertheless, the slope of observed data from Sedaghati et al. (2017), shown in blue, still seems to be steeper than our simulations. A bright region causes the planet to look smaller at shorter wavelengths.