Here are the answers to which Skipper has which color streak in her hair:
Barbie Sisters' Bike for Two Dolls - Skipper and Chelsea – pink streaks
Skipper and Chelsea - Sisters Sleep Out – blue streaks
Barbie Sisters' Beauty Fun Skipper Doll – purple streaks
Now here's a question I have for you Skipper fans: do the color streaks have any particular meaning or are they just different colors?