[Moose-dev] Generating GTInspector extension screenshots?

I have built an application based on the GTInspector. Hurray! Now I want to share it and I need to write documentation. I would like to include screenshots in the docs but I don't want to create them by hand. So my question is: Is there an easy way to automatically generate screenshots for GTInspector extension methods? e.g. to specify an object and the name of a presentation and to get a PNG file of how that looks in the GTInspector. Thanks! P.S. References to how other people write their docs in general would be interesting. P.P.S. Here is GTInspector browsing internal data structures of a JIT compiler :-)