Contrary to its name, the Chameleon Movement implant does not allow the host to change their appearance. Rather — it analyzes their surroundings to show them the most inconspicuous path for the way they look.
Chameleon Movement is an augment which gives the agent +6 AP whenever they become cloaked for any reason. This bonus can be applied more than once per turn, if the agent uncloaks and then cloaks again. Chameleon Movement is available from some Nanofabricators for 300 credits, or from some Augment Grafters.
The bonus from Chameleon Movement does not apply if an agent uses a Cloaking Rig (or a Stim with Subdermal Cloak) while already cloaked.