I was having this discussion with my offsider yesterday about the correct spelling of 'Decal'. We use the term to describe a dotted pattern of 'break up' gobos pointed down on the stage, used for a pattern of light and shade, sometimes as if it's night time, other times as if it's light through trees. I'm sure you've seen countless variations of this. With various dance groups coming through, often having lighting from other places, we've seen various spellings; decal, deckle, deckel, dekkel etc. My thinking is 'decal' is as per a stick on item / logo used for all sorts of advertising and is a real word and spelling. However I can see that 'deckle' could be a corruption of dot & speckle. Is one speling more correct than others? Does anyone have any other ideas, or opinions? or should I not care, and just light the stage ?