Because wolves inspired something stupid
In my silly android!cores for Portal, they started out as human, then pretty much became cybernetically enhanced. Their bodies match the color of the core they’ve been installed with. After the installation process, their arms, lowers legs, and spine are removed and yeah the “all your tumors” which is just Cave talk for internal organs in your torso to fit the core.
A new ‘spine’ is installed and an internal chassis for the core. They all have a black strip down their back, and some on their arms and legs, as their movements are done by electronic pulses sent through the strips and then specifically into internal processes. The spine remains wired for a few months until everything is completely calibrated and then gradually removed ‘vertebrae’ by ‘vertebrae’ and the final, thicker strips are applied.
The color of their skin changes slowly and becomes very blotchy until it completely sets in. Their hair color remains the same. If an android is plugged into the mainframe, their hair turns completely white from the surge.