I've seen it mentioned that your sneakiness is affected by darkness, which makes sense. Obviously if you were to sneak around with a torch in hand, someone could see you more clearly. What I'm not clear on, is if I'm less stealthy with a spell equipped. After all, I do have a glowing ball (or two) of fire/lightning/etc in hand.
Is an equipped spell going to make me stand out more to someone, or does it not matter at all? Is the spell animation purely for my reference to know which spell I have equipped?