[jlokier]

Wow, I had no idea that was available.

Unfortunately it doesn't reduce the dimmest level on my MBP. The bottom 4 subdivisions look identical. Like level 0.25, 0.50, 0.75 and 1.00 are all the same brightness, only 1.25+ starts to get brighter.

The lowest level is still too bright at night. That's unfortunate.

However it does reduce the dimmest level of the keyboard illumination!

That's great. I always found the keyboard too bright at its lowest level at night, but some illumination at night would be helpful for obvious reasons. Now I can enjoy 3 subdivisions lower - thank you :-)