Indian Tabac Super Fuerte Maduro toro

The problem I have with this stick is that I'm convinced that they actually dye their "maduro" wrappers. I've smoked several of these and each time, there's a funny-looking blue-ish hue to the wrapper right around the burn line where the ash meets the wrapper. Also, something else that makes me quite skeptical is the fact that after smoking this stick, my fingers are left with half of the brownish/black dye from the wrapper. Anyone else think ITC dyes these particular maduros to make them look darker??

Jason