allow you to select from a shortlist of "Bond", "Ideal", Flaw".
This would be great and allow for further customization.
It would, but looking at the PHB, each of the 13 backgrounds (not counting variant backgrounds) has 8 possible background subtypes, and 6 each of Bond, Ideal, and Flaw. If they were to be more than just color, they'd need to be implemented somehow into the game. That's 22,464 lines of dialogue which would need to be put in, and that's just assuming that each thing only comes up ONCE.
You could probably merge or cut some similar options, but you get the idea. Everything in a videogame has to be put in ahead of time by the developers.
