It is made so the colors will fade between the selected, instead of just switching.
To set a color, call http://192.168.1.50/_255-255-255_ this will then stay for 60 seconds, and fade back to the sticky setting.
If you want to make a color stick, call http://192.168.1.50/_255-255-255_STICK and it will then fade to this. If someone else then changes the color without the STICK in the end, it will change to that color, and fade back to the setting you made with the STICK in the end.
This way people can still play with the light, without he have to worry about it being turned on all day.