Sounds simple enough, but the longer the cycle, the harder it is to accurately predict sales volumes. At other times, our capacities have been so overburdened that we've chosen to skip certain products in the cycle in favor of others. These are tough decisions, and they are extremely rare. Our market research is as sophisticated as chatting with glass users on the phone, at trade shows, and so on. Black, by definition, is the absence of light.
All light is absorbed.
Anything that transmits light wouldn't be black anymore. We could make a very dark gray, but the darker it is, the less light it would transmit. Everything's a tradeoff. On things we have the ability to do, we will do, with a sensible minimum order. For example, customers can order an iridescent coating or a smooth texture where one isn't normally available.