Yes it is (Cubase 7 and 7.5). We can add icons in mixconsole.
Here is my contribution (.png with transparency and some .jpg files):
http://app.box.com/s/wp6fvy8po3mlxuoq073p
Images for:
Vienna Instruments, Vienna Ensemble, Aria Player, Ivory, UVI workstation, Kontakt 5, The Grand 3, Addictive drums, Addictive keys, Philharmonik CE, Sampletank 2, Padshop and Retrologue (in colors), Halion Sonic, Groove Agent and Steinberg icon.