Player > Feats > Shadow Infusion
After enduring contact with the Shadow Plane, you have become infused with its energies.
You must spend a significant time on the Shadow Plane or otherwise become infused with its energies, such as by dying there or gaining shadow corruption. The GM determines whether you qualify for this feat.
You gain low-light vision and darkvision to a range of 60 feet. If you already have darkvision, you gain the see in darkness ability (Alien Archive 156).