How do they decide the different colors of skittles?

Skittles are colored based on their flavors using various food colorings. Here's the color scheme associated with each flavor:

Red: Strawberry

Orange: Orange

Yellow: Lemon

Lime Green: Lime

Purple: Black Currant (in North America, previously Grape until discontinuation in 2001)

Pink: Berry Fusion (previously Wild Berry until discontinuation in 2022)

Please note that this color scheme is standard for regular Skittles, but limited edition or regional variations may occasionally introduce additional colors or flavors.