A skin tone is just a string containing a color such as "#F8D25C".
"#F8D25C"
These are just hex Strings, so feel free to define others, and do let your users choose their own.
String
#614335
#D08B5B
#AE5D29
#EDB98A
#FFDBB4
#FD9841
#F8D25C
A skin tone is just a string containing a color such as
"#F8D25C".