Okay, so I was just thinking about how annoying it is saving my own salon hex codes so that I don't forget how I made my hair styles [if I ever wanted to recreate the HA or use the same hair again in the future]. So, I would like to suggest a private folder for the Hair colour codes.
I think it would be really helpful, and if you're the only one who can see if you have the choice whether or not you'd like other people to know that colors you used. Not that they're that difficult to recreate but some people are proud of their creations I'm sure.
How I picture it is just like a photo album type thing with a picture of the HA [with the hair] that you can upload, along with a list of the codes to the left or right. Maybe if you're not so secretive about your styles you can make it public too?
I dunno, just putting it out there.