No way! My little brother drew most of DiffPlug's icons (and took the photos used in the demos). He is also just finishing high school, and part of why I made the image differ was to help bring him into the version control fold.

Thanks for the 3D differ link! The conventional wisdom when I talk to people about DiffPlug is that I should make it into a web service. For diffing, I think a desktop app is better than a web service for a few different reasons, but one of them is that the cloud is a pain for big documents like CAD files. I haven't had any real data to support that so far, but the comments thread for that link is very helpful!