The feature in question modifies the Messages application’s visual presentation on iOS devices, shifting from a light color palette to a darker one. This entails replacing bright backgrounds with darker shades, and conversely, altering text and interface elements to maintain readability against the new backdrop. For instance, message bubbles that were once light blue might become a darker blue or gray, while text colors adjust accordingly.
Adopting this visual scheme offers several advantages. Reduced eye strain, particularly in low-light environments, is a primary benefit. Furthermore, it can potentially conserve battery life on devices with OLED displays, as darker pixels consume less power. The implementation reflects a broader trend toward user interface customization that prioritizes user comfort and device efficiency, building upon accessibility options previously available.
