Glowkey treats a video player as an object you want to touch. It's a sage-green device with brushed-metal keys that sink when pressed, a speed dial and a mixing-desk fader. Its signature idea is light: the player reads the dominant colour of the scene, and the keys, progress bar and time glow in that hue, so every shot restyles the interface. I made a demo called Channel Surf, six single-colour miniature worlds with their own music, so the change is impossible to miss. It stays fully usable: complete keyboard control, visible focus, comfortable touch targets, a dedicated phone layout, and calm motion when reduced motion is on.