This is a detailed description of the recent discoveries of altering the human genome for personal enhancements.

A genome is the complete collection of an organism's genetic material. The human genome is composed of about 50,000 to 100,000 genes located on the 23 pairs of chromosomes in a human cell. A single human chromosome may contain more than 250 million DNA base pairs, and it is estimated that the entire human genome consists of about 3 billion base pairs. The DNA being analyzed in the Human Genome Project typically comes from small samples of blood or tissue …

…placed near the other genes coding for rhodopsin synthesis and somehow linked to the cone-cell differentiation signals. Not exactly easy, but hardly impossible). This could expand the range of colors from the near ultraviolet (based on insect rhodopsin) to the near infrared. This would unfortunately work best on the embryonic level, since then the brain will naturally integrate the new type of cone to the visual system. Changes in adults would be much more unpredictable.