Grabby will use the themed camera grabber, but does not support "theming" of the icons.
Instead it supports custom icon packs similar to Zeppelin

Retina icons must end in "@2x.png" and should be 56x58
Legacy icons must end in ".png" and should be 28x29

Template is available here: http://rpetri.ch/db/GrabbyTemplate.psd (resize to 50% for legacy template)
