You have of store credit. To use it, simply place your order and you will be able to choose store credit as the payment method when it comes time to pay for your order.
Color shift yarns are created to be series of colors that work together in a project. The yarn is intentionally dyed so that colors within a set coordinate. A "color shift" is when the colors in the series move or shift from one color to another gradually, the intermediate colors are all related to the two end colors and therefore coordinate. A "tonal shift" is light to dark shades of one color. Most of the colors are also available in whole skeins on most bases, mini skeins are only available on Meridian yarn at this time.