How to dim keyboard with AlienFX?

I noticed that we can dim the keyboard with AlienFX by right-clicking it. However, there are only 2 levels of dimness or brightness. Is there anyway to have more levels of brightness? Dell's XPS line has 4 levels of brightness and their Latitude line has 5 levels of keyboard brightness.

I hope Dell engineers consider enhancing this feature if they update AlienFX again.