When entering the Control center, the system performs real-time layer stacking and blur processing to create a smooth and visually appealing transition effect. However, during this process, especially when there is a significant difference in the grayscale or contrast of the background content, you will notice slight visual artifacts, such as uneven stripes, ripples, or banding effects, appearing momentarily on the screen.
This phenomenon is a result of software-level rendering and algorithmic processing, and it is considered normal behavior under certain visual conditions. This is not a hardware issue with the phone, so please rest assured to use it.