blue = 0.0 red right 0.0 to 1.0 green down 0.0 to 1.0
blue = 0.1 red right 0.0 to 1.0 green down 0.0 to 1.0
blue = 0.2 red right 0.0 to 1.0 green down 0.0 to 1.0
blue = 0.3 red right 0.0 to 1.0 green down 0.0 to 1.0
blue = 0.4 red right 0.0 to 1.0 green down 0.0 to 1.0
blue = 0.5 red right 0.0 to 1.0 green down 0.0 to 1.0
blue = 0.6 red right 0.0 to 1.0 green down 0.0 to 1.0
blue = 0.7 red right 0.0 to 1.0 green down 0.0 to 1.0
blue = 0.8 red right 0.0 to 1.0 green down 0.0 to 1.0
blue = 0.9 red right 0.0 to 1.0 green down 0.0 to 1.0
blue = 1.0 red right 0.0 to 1.0 green down 0.0 to 1.0