you just made me remember why i like so much linux, what you did is extremely hard in another os
about size, afik, you can use svg or other formats up to 256x256 but since AndrzejL reports bigger sizes i think there is no limit now
i know there was a 64x64 before
your desktop is now 100% unique!
Yep.

Exactly why I love Linux, as well.
The amazing thing is, all the functionality and effects for that button (highlighting, depressing, etc.) is still there. Absolutely slick!:)
Rudge, thanks.

I see the possibilities in populating the desktop icons with my own characters.