Tristan

Please merge this request. It adds desired functionality, as can be seen in #293.

In the long run, it probably makes sense to aim for a library. But also in this state, excluding the config information would actually reduce complexity imho. Sure, it's one...

Unsure if HSV is really needed, but wouldn't this maybe be possible with FastLED's `setBrightness(b)` (see [documentation](http://fastled.io/docs/3.1/class_c_fast_l_e_d.html#a730ba7d967e882b4b893689cf333b2eb)) function?

Understood. Thinking about it more, HSV probably is the way to go then as all solutions with `setBrightness()` would be kind of hacky.

+1 this seems like a relatively simple but essential and needed feature that is a show stopper for some of our applications.

@NyakudyaA, sounds great thanks! Regarding the use of the `latest` tag in production - I just used it in the absence of other tags as I presumed. I am using...