looking for a basic fade from black-color LED Example...

I have read the FastLED wiki, but I am still trying to find a basic example of fading a LED from black (off) to a specified color for an individual LED.

I am using a 30 LED/meter strip of WS2812b LED's.

I understand the HSV concept, but I can't find a working example to further explain it to me.

Anyone have some same code??

I am getting better understanding of the C++ code and how it applies, so further examples are great!

Thanks !!