Switch between color/brightness with rotary encoder for Nano (RGB LED Strip)

This is almost what i'm looking for..... :wink:

But instead of a RGB LED strip I want to use a addressable RGB Led Strip (like WS2812B or WS2813)

So I do not have 3 Led Outputs, but just one.
Search for day's all over the internet, but this is as close as i get......
Unfortunately I am a complete noob when it comes to programming.

Is there someone who can help me?