sferik/rails_admin — comment on commit 4c8a95db3ec44a5bd1a3d5006702ed755dd92656
File:  line 0
By chewi:

Ah now I see what you were trying to do. Check ALL the styles for thumb/thumbnail before trying small/admin. This makes sense. In this case, it's just the .include?(s) that's missing. Okay, I'm done. :-)