Quick Unused Icons list?

[Timbo]

Is there a good way to view all of the games unused feat and power icons?

[Nereithr]

Specifically unused? No,  you would have to cross-reference feats.2da for icons of cut feats or just icons that don't have a corresponding feat. 

But if you are using Holocron Toolset you can just go to the Textures tab, type "i_" , scroll down and you will see a list of feat icons (both used and unused).