The Pixel smartphones may soon feature a notification system called "Pixel Glow," which could involve a color LED that cycles through red, green, and blue colors when users receive notifications or interact with the Gemini assistant. Code snippets from the Pixel Diagnostics app suggest users might be able to test the LED's functionality, with terms like “Pass,” “Fail,” and “Rerun” indicating a diagnostic process. Additional references in the code include “PixelLights,” “Gemini Glow,” and “Aurora,” hinting at advanced lighting effects. Speculation suggests the LEDs could be integrated into the rear of the device, possibly around the camera or beneath the "G" logo, but the exact design and timeline for release remain unclear.