Sorry, but this one I can't say for 100% sure - maybe it's just because it's a part of the overall description. I'm sure someone will know and will chime in! Generally one might think that the taste of a whisky is actually directly in relation to the color profile, i.e. the darker the whisky the older and better tasting - as I once did. However, as you know, this is not necessarily true and for number of reasons. First of all, not all whiskies are matured in first-fill casks, some are second to third fill, so the liquid takes on a lighter color, but not a weaker flavor profile. Many very old whiskies are very light in appearance. Second - there are companies that add caramel coloring to their whisky in order to give it a better self appeal as well as to insure coloring for all production is the same. Also to mention - many single grain whiskies are mostly light in appearance, but have fantastic flavors and age.