A bunch of small questions

[Dinocanid]

I don't know where you would put it to have it affect the whole site. I think I did it once, but I honestly don't know what I did lol. I think I might have stuck it in the index, or class_template...

With the dynamic image script, it would ignore pre-set adopt images (and any related mods to it). Alternate images are still possible by using if statements in the image generation, which is how I have different linearts for pups and adults in Wild Souls.

For the breeding system, mysidia handles that by default with "create breed adopt" (you must have it set to "advanced" and not "heuristic" though), so thankfully something like that will not need a rewrite. It's also possible to directly modify the breeding script for things like marking rarities/probability, etc. Abron's battle mod includes inheriting stats, and it can be modified to include different type traits too.