Add configuration parameters for custom hues for each state

[trimble]

I'd like to have the ability to set custom hues (and saturation? and brightness?) for each build state. Maybe something like:

[trimble]

...or maybe name them:
"Build running hue"
"Build success hue"
"Build failed hue"
"Build unstable hue"

...do we need to support "disabled" state?

[MMore]

Well, do I understand it right: you wanna have a different light for "success" than for "failed" or "running". Or do you wanna define the color (and saturation and brightness) for the different states?