Not a real APP contribution, just a small code snippet that might be handy for others.
The official Philips Hue App has 4 pre-defined scenes, Energize, Reading, Concentrate and Relax. Below are the HomeGenie ColorHsb codes to reproduce these scenes:
// All four are at full brightness
// Energize
hg.Modules.WithName("Light 1")
.Command("Control.ColorHsb").Set("0.52635,.9133,1");
// Reading
hg.Modules.WithName("Light 1")
.Command("Control.ColorHsb").Set("0.23393,.4763,1");
// Concentrate
hg.Modules.WithName("Light 1")
.Command("Control.ColorHsb").Set("0.51649,.1732,1");
// Relax
hg.Modules.WithName("Light 1")
.Command("Control.ColorHsb").Set("0.1997,.8346,1");