Is it possible to make an LED-lit keyboard (and mouse) have a breathing effect?

Running Windows 8.1 64-bit.

Right now I have a CM Storm Devastator Gaming Gear Combo, and I'm loving the LEDs. I even recoloured my whole Rainmeter setup and wallpaper for them. The thing is, I want the LEDs to breathe whenever the computer is idle, or when I want it to. Is this possible with the use of 3rd party software?