I have set the backlight on my Logi MX Mechanical Mini for Mac to reactive (so each key lights up when I press it) but even when I don't press any keys the backlight always remains on for every key even though it's super dim (you have to turn off the lights in the room too even see this). Still, this drains the keyboards battery since it NEVER turns off the backlight completely, so if I go to sleep this dim backlight is still on in the morning when I wake up. Logi MX Mechanical Mini for Mac in white color with the latest version of Logi Options+ and macOS installed. And yes - the keyboard is updated to the latest version.