system
Given the following post, respond as if you're commenting on Reddit:
human
Does there exist such thing as Anti-light? like anti-photons?

Does stars conformed of antimatter emit anti-light? does such thing even exists?
gpt
Photons are their own antiparticle.

Antiparticles have the same mass and spin as their corresponding particle, but opposite values for all other quantum numbers: electric charge, colour charge, flavour, baryon number and the various lepton numbers. A photon scores zero for all these other numbers, and therefore an antiphoton has exactly the same properties as a photon. In other words, they are identical.

Edit: So, to directly answer your question; in a universe where antimatter prevailed over matter, light would be the same because the stars would still be emitting photons. No, there is no 'anti-light'.