Why do the photos taken by the Xiaomi 15 Ultra suddenly become brighter when viewing them in Xiaomi Gallery?

Thank you for your support of Xiaomi products. The Xiaomi 15 Ultra has undergone strict professional inspection before leaving the factory, so you can feel confident in the performance and reliability of your device, knowing that it has been thoroughly tested for quality and functionality.
Xiaomi Gallery is equipped with an ultra-dynamic display function designed to significantly enhance the photo viewing experience. This feature comes into play when you are previewing large pictures, such as when you open high-resolution photos or detailed images. The ultra-dynamic display function optimizes the colors, contrast, and brightness of the photo, providing a more vibrant, realistic, and immersive visual experience.