Hair Dyes as a Separate Feature

Dying hair is quite common in real life, yet the options in the sims is limiting. There are few hairstyles that have highlights and you don't really get to control what color the highlight is. Giving your sim an 'unnatural' hair color will give your sim's kids a completely randomized hair color, that is, if you want your sim to have children. Giving your sim 'natural' hair color while they have different eyebrow colors impacts nothing. One way to add hair dyes as a separate feature is utilizing the paint system for pets and werewolves. Another would be to give a series of presets similar to nails. Lastly, being able to have your sims be able to dye their hair, either permanently or temporarily, would add more gameplay possibilities.