These are about a month and a half old and have been in a dark box in a 70º room since I've had them. I didn't notice the color when I started back then so I don't know if they have changed color or not. They all look pretty much the same except the Peach Cobbler and Arctic Mint with a green tint and the Wild Cherry is clear. Maybe we can compare colors here and see if there really is any change going on and if its specific to one or two flavors.