They do not have the capacity to see color in the way we do, with different cells sensitive to different wavelengths of light.
Instead, they exploit chromatic aberration, by which different colors at the same focal distance require different lensing to focus on the retina. By knowing how far away something is and seeing how sharp versus blurry it is at slightly different eye-focuses they can know how bright it is at different wavelengths.
They do not have the capacity to see color in the way we do, with different cells sensitive to different wavelengths of light.
Instead, they exploit chromatic aberration, by which different colors at the same focal distance require different lensing to focus on the retina. By knowing how far away something is and seeing how sharp versus blurry it is at slightly different eye-focuses they can know how bright it is at different wavelengths.