I recall the idea has cropped up before in a few threads, and I’m sure tentative homebrew mods have been toyed with (hell, I’ve played with the idea too), but I’m not sure if anyone’s uploaded or PR’d definitive work on the concept, nor have I seen a thread dedicated to discussing the idea.
So I’ll start by giving a few ideas on adding such an idea, possibly as a mod, and what might suit it.
First off, bat wings. As it stands these are a derpy non-category trait that doesn’t seem to cause any encumbrance or hinder clothing, but DOES give a nasty -3 to dodge. It might be an interesting idea to add an additional trait that develops from this, as proper dragon wings. Since .json only gives us control over some things like stat mods, wetness penalties, and how ugly it makes us, we could easily make this a cosmetic trait, and simply imply that the character has gotten used to moving with said wings, but can’t fly with them.
As for other ideas, anything more involved would require source edits. It would be amusing to have them as valid professions as well, solely for demonstration and testing. We could also consider just how draconic said mutant could become, with two possibly interpretations.
Two convenient images to demonstrate what I meant. In the case of mutant characters we could have more extreme mutations be post-threshold, which a draconic mutant trending towards essentially just a human with wings/tail/etc before reaching the threshold, then developing to a larger form resembling a bipedal dragon.
EDIT: Toying around with ideas for it, I has a mod now. Gonna dropbox it for the time being, unlike the last mod I offered up, I don’t think this really warrants a PR.
Dropbox Page Link: https://www.dropbox.com/s/tqg9a26bwhwgubx/Dragonblood_Test.zip?dl=0
Direct Public Link: https://dl.dropboxusercontent.com/u/89427928/Dragonblood_Test.zip