LED Lighting will prevail (Score 1)

The colors Red, Green, and Blue have done wonders for Light Emitting Diodes in the past few years. Control systems for the color and brightness have been available for years now. As global production and distribution increases in the next few years, your children may be asking you what an incandescant light bulb is, because every light fixture in your house will be independently controlled over a web-interface, to produce any color or variation of colors that you desire.