This post expands upon the existing thread of color-coded signage. Here attention is drawn to the price and level of savings by sticker color. Obviously it is a coding system under development as portrayed choices are limited.

For color-coding SEE…
Color-Coded Sports Retailing
Color-Coding Diopter Strength
Near-sighted not Color Blind
Foster Grants Color-Coded
Color-Coding Without Color Legend
Color-Coded Prices at Shelf Edge
Color-Coded Pricing Signholder
Color-Coded Product and Point-of-Purchase
Color-Coded Back Tags
Glass Shelf Overlay Offers Color-Coded Sign
Odd Label Holder Violates Silhouette
Glass Shelf Overlay Offers Color-Coded Sign
Plastic Uniweb Butterfly Hook Display
Color Code on Butterfly Hook
Shopping By Single-Color Numbers

For a broader perspective on color SEE…
Psychology of Color in Purchases

SEARCH “Color Strips” to pursue use of color in shelf edge label holder systems.