Control Disk is a functioning colour-changing sculpture developed as part of Paradox Tale of Logic Gate. Its circular display uses printed electrochromic electronics and physically changes colour.

The technology grew from Farvash’s material research with RISE, where they worked with electrochromic displays and developed ways of introducing colour into the technology. The research later attracted military interest for its possible use in concealment.

Within the Paradox Tale world, the Control Disks form part of the system surrounding Citizen 000 001.