Well, there is PnP print, I don't see why would someone need PnP render when it's only used to print for transfer. My plan is to make .DIY format exchangable and not image format because it will have some advantages:
-you can easily modify layout
-for some new features I plan ("node connection checker", or something)
-you have layout, parts list and PnP transfer in same file
-.DIY file is approx. 10 times smaller than GIF and even more than JPG
So for layout gallery I plan to make on my site, .DIY filles will be available for download.
As for reversing, it's not needed for PnP. Orientation is the same for PnP transfer and board layout when you look board from side whith no copper. I'm 99% sure about that
