I think you're on to it, Jon. The pegs used for shop drawings really don't care about peg hole diameter. All they do is locate the pegs hole marks on the mortise, and those are just cross-hairs for locating your peg drill bit, whatever diameter.

For the "show pegs" option, these are just cosmetic pegs for presentation drawings. You can either hack the code, or just modify one of the pegette components. Since they are all the same component, you change one you change them all.

Finally, regarding having others contribute to the development of the TF Rubies, that would be a dream come true. If you want to add a configuration option for the peg diameter, I'd be happy to merge that into the code. CB.