Chameleon Skin α

• Prereq: requires Living Land ; Edeinos

Some very rare edeinos have a strange mutation that allows their skin to change color to match their environment. As long as they don’t wear excessive clothing or armor that obscures their scales, they are Favored at stealth tests. If the edeinos uses an Active Defense all ranged attacks against him suffer an extra –2 penalty.

Edeinos

Natives of the Living Land, edeinos are lizardlike humanoids who venerate a Goddess of Life and celebrate survival against all odds. After the invasion of Core Earth by the Reality Raiders, many edeinos have journeyed beyond their cosm and joined the fight against the High Lords. Most are eager for new experiences, seeing each day as another test of survival.

This perk leads to Bone Marked, Hunter of Lanala, Skin Shifter.
From Core Rules