If the screen color of the Xiaomi 15 changes at night when enabling Cycle reading mode, please refer to the following details:
1. When you enable reading mode on the phone, the screen color changes to reduce blue light and make it more comfortable for your eyes, especially in low-light conditions;
2. The Cycle reading mode will dynamically adjust the screen color temperature to improve the screen experience and enhance your comfort at different times and scenarios throughout the day;
3. If you want to further adjust the screen color temperature or fix it at a certain color temperature value, you can switch to the Classic reading mode and customize the color temperature. Thank you for your use.