'Customized' Screenshots

I am trying to do something I haven't done yet and I am not sure which way to go and what GH can do. One option is SVG and Inkscape/Illustrator, but I just need a proper PNG, so maybe there is a nicer way than getting too much into SVG. Also, I use Rhino's standard settings and I don't want to change those just to make a screenshot, either.

My best case scenario is a cluster/definition/script I can connect my objects to and then they are drawn black and centered on a white background rectangle and my screenshot doesn't need any Photoshop.