Question about PocketBook Verse

The PocketBook Verse has a function that allows you to adjust the brightness and colour temperature of the display, which is called SMARTlight. This allows you to choose between warm and cool tones of the frontlight, which enables a kind of "dark mode" or rather, an adaptation to dark environments. However, there is no specific "dark mode" in the conventional sense, but rather a flexible adaptation of the lighting to different lighting conditions.