For wireless backlit keyboards, pleeeease add a toggle option for keeping the backlight on when connected to power, or even a few timing options (i.e. 15s, 30s, 1min, 5min, Always On)
Being able to choose a length of time before the backlight fades out after inactivity when not plugged in would be a great Quality of Life feature as well (i.e. 10s, 15s, 30s, 1min).