(Feature Request) Change penis colour separately from model colour

[dude98]

i know this doesn't completely make sense from just the base kobold model, as the colours match, but i've found that a pretty big chunk of modded models don't. i don't know if they aren't matching because they're not allowed to edit it or because of something else, but for either situation it'd be nice to just be able to change the colour separately because it'd allow two things:

1. To have a model colour and penis colour not match for player models (or have dark red for model and orange for the penis for a two tone effect)
2. To match a modded model's main colour for the mods that can't edit the textures.
   if you don't wanna make this a player option, having it as something modders can edit would work, you'd just have to put it in the modding documentation. I ask for this just because it's always nice to see more customization, especially on sandbox style games.