Gustomized GNOME Colors Alpha
GNOME icons theme
As you can see there is some elemental stuff there- the color now is GNOME Human - they aim to take advantage of relatively available hardware and add some style to your desktop.
They are totally scalable svg icons.
If anyone wants to help with contribution or output the files for different resolutions and change the colors up (I was thinking making a complete GNOME colors set at the very least) I'm all for open-sourcing' the artwork!